Information on four investment proposals is given below: Investment required Present value of cash inflows Net present value Life of the project Investment Proposal D $(270,000) $(90,000) $(100,000) $(2,800,000) 393,500 127, 100 151,300 3,738,500 $ 123,500 $ 37,100 $ 51,300 $ 938,500 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. Project Investment Profitability Proposal index Rank Preference