Internal Rate of Return Method The internal rate of retum method is used by Testerman Construction in analyzing a capital expenditure proposal that involves an investment of $51.700 and annual net cash flows of $20,000 for each of the four years of its use. Present Value of an Annuity of Staf Compound Interest Year 10% 125 159 20% 1 0.943 0.870 0.833 2 1.330 1.736 1.690 1.626 1.520 3 20673 2.47 2.402 2.283 2.106 4 3.170 2007 2.855 5 3.791 3.60 2.991 6 4.917 4.355 4.111 3.78 3.326 7 5.52 4.06 4.564 4.160 3.605 8 6.210 5.335 4.960 3.837 9 6.000 5.759 4.772 4.001 10 7.360 6.145 5.650 5.019 4.192 4112 . Determine a present value factor for an annuity of which can be used in determining the internal rate of return. If required, round your answer to three decimal places. 1. Using the factor determined in part() and the present value of an annuity of 1 table above determine the internal rate of return for the proposal