show work in excel please

1. An investment has a cost of $5600. The investment will have a payout of X at the end of the first year. This initial payout X will grow at the rate of 8% per year for the next 2 years, then by 6% per year for the next 4 years, then by 5% for the next 2 years, and then at the rate of 3% per year for the following 3 years. You believe the riskiness of this investment is 10%.
   1. Calculate the smallest X that would entice you to invest.