Finding the Fourth Proportional to 3,707.15, 5,120.10 and 2,526.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,707.15 : 5,120.10 = 2,526.17 : x
2. Step 2: Convert to fraction form
   3,707.15/5,120.10 = 2,526.17/x
3. Step 3: Cross multiply
   3,707.15x = 5,120.10 × 2,526.17
4. Step 4: Simplify right side
   3,707.15x = 12,934,217.42
5. Step 5: Solve for x
   x = 12,934,217.42/3,707.15
6. Step 6: Final answer
   x = 3,489.00