George Kyparisis owns a company that manufactures sailboats. Actual demand for George?s sailboats during each of the past four seasons was as follows: Season 1 2 3 4 Winter 1,400 1,280 1,040 900 Spring 1,520 1,400 1,640 1,580 Summer 1,040 2,100 2,040 2,000 Fall 600 810 690 560 George has forecasted that annual demand for his sailboat in year 5 will equal 6500 sailboats. 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?