Finding the Fourth Proportional to 1,452.24, 2,003.64 and 831.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,452.24 : 2,003.64 = 831.12 : x
2. Step 2: Convert to fraction form
   1,452.24/2,003.64 = 831.12/x
3. Step 3: Cross multiply
   1,452.24x = 2,003.64 × 831.12
4. Step 4: Simplify right side
   1,452.24x = 1,665,265.28
5. Step 5: Solve for x
   x = 1,665,265.28/1,452.24
6. Step 6: Final answer
   x = 1,146.69