Finding the Fourth Proportional to 1,494.18, 2,061.96 and 831.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,494.18 : 2,061.96 = 831.18 : x
2. Step 2: Convert to fraction form
   1,494.18/2,061.96 = 831.18/x
3. Step 3: Cross multiply
   1,494.18x = 2,061.96 × 831.18
4. Step 4: Simplify right side
   1,494.18x = 1,713,859.91
5. Step 5: Solve for x
   x = 1,713,859.91/1,494.18
6. Step 6: Final answer
   x = 1,147.02