Finding the Fourth Proportional to 1,494.26, 2,061.96 and 831.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,494.26 : 2,061.96 = 831.12 : x
2. Step 2: Convert to fraction form
   1,494.26/2,061.96 = 831.12/x
3. Step 3: Cross multiply
   1,494.26x = 2,061.96 × 831.12
4. Step 4: Simplify right side
   1,494.26x = 1,713,736.20
5. Step 5: Solve for x
   x = 1,713,736.20/1,494.26
6. Step 6: Final answer
   x = 1,146.88