28: The demand data for an item for 3 years is given in the table below. Find the forecast for the Winter quarter of the fourth year using the seasonal forecasting model. Total demand in the fourth year is expected to be 2212 units.
Quarter Year 1 Year 2 Year 3 Fall 110 135 180 Winter 240 355 500 Spring 600 750 830 Summer 450 540 610