Investments A and B have equal internal rate of return. Investment A requires an initial investment of 4000 at t = 0. The return consists of payments of 500 at the end of each year for 9 years (from t = 1 to t = 9), plus a payment of 2000 at t = 10. Investment B requires the investor to deposit 1000 at t = 0. The return consists of 5 annual payments of amount X, the first payment occurring at t = 1. Find X. Specifically I need help with finding the internal rate of return I know it is 8.233% but am not sure how to get there.