Finding the Fourth Proportional to 1,494.76, 2,062.72 and 831.64

Step by Step Solution

1. Step 1: Write the proportion equation
   1,494.76 : 2,062.72 = 831.64 : x
2. Step 2: Convert to fraction form
   1,494.76/2,062.72 = 831.64/x
3. Step 3: Cross multiply
   1,494.76x = 2,062.72 × 831.64
4. Step 4: Simplify right side
   1,494.76x = 1,715,440.46
5. Step 5: Solve for x
   x = 1,715,440.46/1,494.76
6. Step 6: Final answer
   x = 1,147.64