1. **State the problem:** Calculate the value of the expression $$ (317.200 - (4.200.000 \times 0,032)) \times 1,72 $$. 2. **Understand the expression:** The expression involves multiplication and subtraction inside the parentheses, followed by multiplication outside. 3. **Convert commas to decimal points:** In math, commas are decimal separators in some regions, so rewrite: $$ 317.200 = 317.2 $$ $$ 4.200.000 = 4200000 $$ $$ 0,032 = 0.032 $$ $$ 1,72 = 1.72 $$ 4. **Calculate inside the parentheses:** $$ 4,200,000 \times 0.032 = 4200000 \times 0.032 = 134400 $$ 5. **Subtract:** $$ 317.2 - 134400 = -134082.8 $$ 6. **Multiply by 1.72:** $$ -134082.8 \times 1.72 = -230620.816 $$ 7. **Final answer:** $$ -230620.816 $$