Given the data for the past 21 months for actual sales of a particular product below. LAST YEAR THIS YEAR 300 400 January February March April May 275 375 350 425 400 350 350 275 350 425 450 400 460 400 300 375 500 550 500 June July August September October November December Develop a forecast for the fourth quarter using a three-quarter, weighted moving average. Weight the most recent quarter 5. the second most recent 25, and the third 25. Solve the problem using quarters The forecast is Blank 1