Internal Rate of Return Method for a Service Company The Riverton Company, a ski resort, recently announced a $256,102 expansion to lodging properties, lifts, and terrain. Assume that this investment is estimated to produce $77,000 ir equal annual cash flows for each of the first six years of the project life. Present Value of an Annuity of $1 at Compound Interest a. Determine the expected internal rate of return of this project for six years, using the present value of an annuity of $1 table above. If required, round your final answer to the nearest whole percent. X \% b. Indentify the uncertainties that could redu