Information on four investment proposals is given below: Investment required Present value of cash inflows Net present value Life of the project Investment Proposal A B D $(102,000) $(112,000) $(82,000) $(138,000) 161,160 145,600 126,280 187, 680 $ 59,160 $ 33,600 $ 44,280 $ 49,680 5 years 7 years 6 years 6 years Required: 1. Compute the project profitability index for each investment proposal. (Round your answers to 2 decimal places.) 2. Rank the proposals in terms of preference. Investment Proposal Project Profitability Rank Preference Index A B D