Sarah’s essential (fixed) expenses are $750 per month, her essential (flexible) expenses are $500 per month, and her non-essential expenses are $250 per month. Her 401-K retirement account has $6,000, her education savings account has $3,000, and her emergency fund savings account has $2,300. Sarah wants an emergency fund of 5 times monthly living expenses. How much more does Sarah need to save to have an adequate emergency fund?