Finding the Fourth Proportional to 1,494.28, 2,062.06 and 831.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,494.28 : 2,062.06 = 831.09 : x
2. Step 2: Convert to fraction form
   1,494.28/2,062.06 = 831.09/x
3. Step 3: Cross multiply
   1,494.28x = 2,062.06 × 831.09
4. Step 4: Simplify right side
   1,494.28x = 1,713,757.45
5. Step 5: Solve for x
   x = 1,713,757.45/1,494.28
6. Step 6: Final answer
   x = 1,146.88