Rent-to-Own Equipment Co. is considering a new inventory system that will cost $750,000. The system is expected to generate positive cash flows over the next four years in the amounts of $350,000 in year one, $325,000 in year two, $150,000 in year three, and $180,000 in year four. Rent-to-Own's required rate of return is 8%. What is the internal rate of return of this project? 10.87% 11.57% 13.68% 15.13%