find for quarter 2015

2. The following data describes the marketing performance of a regional beverages producer (Sales by Quarter ($100,000)) : Year I IV 2011 89 74 38 25 2012 91 78 44 23 2013 73 81 41 23 The adjusted seasonal indices for each of the four quarters are calculated as follows: IV 1.4881 1.3705 0.7235 0.4176 Deseasonalize the data and fit the linear trend equation to it and then forecast the values for all quarters of 2015