George Kyparisis owns a company that manulactures sailboats. Actual demand for George's sailboats during each of the past four seasons was as follows: George has forecasted that annual demand for his sailboats in year 5 will equal 5,600 sailboats. Based on the given data and using the seasonal model, the demand level for George's sailboats in the spring of year 5 will be sallboats (enter your final answer as a whole number and round all intermediate calculations to two decimal places)