Finding the Fourth Proportional to 2,428.46, 3,641.76 and 868.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,428.46 : 3,641.76 = 868.17 : x
2. Step 2: Convert to fraction form
   2,428.46/3,641.76 = 868.17/x
3. Step 3: Cross multiply
   2,428.46x = 3,641.76 × 868.17
4. Step 4: Simplify right side
   2,428.46x = 3,161,666.78
5. Step 5: Solve for x
   x = 3,161,666.78/2,428.46
6. Step 6: Final answer
   x = 1,301.92