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 $1234$

Winter $1,4001,2401,000920$

Spring $1,5001,4401,6201,540$

Summer $1,0202,1402,0202,000$

Fall $680750650520$ George has forecasted that annual demand for his sailboats in year $5$ will equal $6$ comma $000$ sailboats.$$

Part $2$

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

$$

sailboats $($enter your final answer as a whole number and round all intermediate calculations to two decimal $$places$).$