Finding the Fourth Proportional to 3,581.72, 4,934.90 and 2,681.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,581.72 : 4,934.90 = 2,681.72 : x
2. Step 2: Convert to fraction form
   3,581.72/4,934.90 = 2,681.72/x
3. Step 3: Cross multiply
   3,581.72x = 4,934.90 × 2,681.72
4. Step 4: Simplify right side
   3,581.72x = 13,234,020.03
5. Step 5: Solve for x
   x = 13,234,020.03/3,581.72
6. Step 6: Final answer
   x = 3,694.88