George Kyparisis owns a company that manufactures sailboats. Actual demand for George's sailboats during each of the past four seasons was as follows: Year Season Winter Spring Summer Fall George has forecasted that annual demand for his sailboats in year 5 will equal 6,000 sailboats. 1 2 3 4 1,440 1,200 1,080 900 1,560 1,400 1,600 1,580 1,020 2,100 2,040 1,900 680 750 670 520 Based on the given data and using the multiplicative seasonal model, the demand level for George's sailboats in the spring of year 5 will be sailboats (enter a whole number).