Finding the Fourth Proportional to 1,831.98, 2,528.11 and 1,086.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,831.98 : 2,528.11 = 1,086.29 : x
2. Step 2: Convert to fraction form
   1,831.98/2,528.11 = 1,086.29/x
3. Step 3: Cross multiply
   1,831.98x = 2,528.11 × 1,086.29
4. Step 4: Simplify right side
   1,831.98x = 2,746,265.59
5. Step 5: Solve for x
   x = 2,746,265.59/1,831.98
6. Step 6: Final answer
   x = 1,499.07