can you write out the work, not on excel

Mack Industries just paid a dividend of $1.00 per share (i.., Div =$1.00 ). Analysts expect the company's dividend to grow 20 perdant this year (i.e., Div 1=$1.20 ), and 15 percent next year, and 10 percent the year after. After three yoars the dividend is expected to grow at a constant rate of 5 percent. The required rate of return on the company's stock is 12 percent. Calculate the expected price of the stock (P.)