please explain this

You are considering an investment in Justus Corporation's stock, which is expected to pay a dividend of $2.25 a share at the end of the year ( D1 =$2.25 ) and has a beta of 0.9. The risk-free rate is 5.9%, and the market risk premium is 5.5%. Justus currently sella price at the end of 3 years? (That is, what is P3 ?) Do not round intermediate calculations. Round your answer to the nearest cent. $