Finding the Fourth Proportional to 1,460.71, 2,015.60 and 831.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,460.71 : 2,015.60 = 831.32 : x
2. Step 2: Convert to fraction form
   1,460.71/2,015.60 = 831.32/x
3. Step 3: Cross multiply
   1,460.71x = 2,015.60 × 831.32
4. Step 4: Simplify right side
   1,460.71x = 1,675,608.59
5. Step 5: Solve for x
   x = 1,675,608.59/1,460.71
6. Step 6: Final answer
   x = 1,147.12