Urgent please help .

The table below shows a company's manufacturing cost,overhead,total sales,profit and dividend per shareholder over 4 years.Assume the relationships among manufacturing cost,overhead,total sales , profit, and dividend per shareholder remain the same over the years.

What should have been the dividend per shareholder in 2017, assuming the number of shareholders has remained unchanged during the period 2017-2020?

1- $17.45

2- $19.5

3- $20.0

4- $25.0

\begin{tabular}{|r|r|r|r|r|r|} \hline Year & \multicolumn{1}{|l|}{ Manufacturing cost } & & Total Overhes & Profit & \multicolumn{1}{|c|}{ Dividend shareholder } \\ \hline 2017 & $10,000 & $3,000 & $20,000 & $7,000 & ? \\ \hline 2018 & $15,000 & $4,500 & $35,000 & $15,500 & $44.29 \\ \hline 2019 & $5,000 & $1,500 & $15,000 & $8,500 & $24.29 \\ \hline 2020 & $25,000 & $7,500 & $50,000 & $17,500 & $50.00 \\ \hline \end{tabular}