Problem
An phone company, telecom, uses the number of new customers it acquired during each quarter as an indicator of its business performance. After looking at its historical data, the company believes that the number of new customers acquired in each quarter would be best estimated by a combination of trend and seasonality with an additive relationship. The equation to estimate the trend is determined to be Gt = 100 + 15x, where x = 0 refers to the second quarter (Q2) of last year. The additive seasonal components are 3.2 for Q1, -4.5 for Q2, -6.8 for Q3, and 7.4 for Q4.
What should be the company's forecast for the number of new customers acquired during the second quarter of next year?