The internal rate of return method 6 used by Rogron Construcholn Cy in analyaing a capital eipendhure proposal that imolves an moutment of 5105 , 875 and annual net coih fiows. of 525,000 iee each of the 6 years of its useful fite a. Detemine a present value factor for an ariniaty d s1, which can be used in deteitaning the miternal rate of neturn. If required, round your answer to three decimal places. B. Using the factor determined in part (a) and the present value of an annuity of si tabie obeve, determine the internat rate of return for the proposat