During 2019, half of the treasury stock was resold for $180,000; net income was $510,000; cash dividends declared were $1,320,000; and stock dividends declared were $680,000. what was shareholders' equity as of december 31, 2019

$5,790,000 using opening balance assumption which was not provided in the question

Explanation:        

Shareholders Equity 2019= Opening Shareholders Equity + Resold Treasury Stock + Net income - Cash Dividends Paid

Here

Resold Treasury Stock is $180,000

Net income $510,000

Cash Dividends Paid $1,320,000

Opening Shareholders Equity is missing so we assume the following remainder part as I didn't find the remainder part anywhere:

As of Dec. 31, 2018, Warner Corporation reported the following: Dividends payable- 20,000; treasury stock- 600,000; paid-in capital-share repurchase- 20,000; other paid-in capital accounts- 4,000,000; retained earnings- 3,000,000.

So

Opening Shareholder Equity = Opening paid-in capital accounts + Retained earnings - Treasury Stock + Paid in Capital share repurchases

Opening Shareholder Equity = $4,000,000 + $3,000,000 - $600,000 + 20,000 = $6,420,000

By putting values, we have:

Shareholders Equity = $6,420,000 + $180,000 + $510,000 - $1,320,000

Shareholders Equity = $5790,000