Finding the Fourth Proportional to 1,494.42, 2,062.11 and 831.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,494.42 : 2,062.11 = 831.15 : x
2. Step 2: Convert to fraction form
   1,494.42/2,062.11 = 831.15/x
3. Step 3: Cross multiply
   1,494.42x = 2,062.11 × 831.15
4. Step 4: Simplify right side
   1,494.42x = 1,713,922.73
5. Step 5: Solve for x
   x = 1,713,922.73/1,494.42
6. Step 6: Final answer
   x = 1,146.88