Question: Seasonal indexes: Multiplicative model

The quarterly sales volume (in thousands of dollars) for a manufacturer of snow skis is seasonal (there tend to be more skis sold during fall and winter months than during warmer months). The following table shows the quarterly seasonal indexes for the company's sales:

Using several years of sales data, beginning in Quarter of (i.e., corresponds to Quarter of ), the manufacturer summarized that the trend line that describes the quarterly sales (in thousands of dollars) has the form . Assuming that a multiplicative model can be used to describe the sales data, generate a forecast for the total dollar sales that the company can expect to receive in Quarter of .

Express your answer in thousands of dollars.