The American Heart Association is about to conduct an anti-smoking campaign and wants to know the fraction of Americans over 4747 who smoke. In an earlier study, the population proportion was estimated to be 0.30.3. How large a sample would be required in order to estimate the fraction of Americans over 4747 who smoke at the 85%85% confidence level with an error of at most 0.020.02? Round your answer up to the next integer.