Finding the Fourth Proportional to 1,160.53, 1,736.72 and 831.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,160.53 : 1,736.72 = 831.83 : x
2. Step 2: Convert to fraction form
   1,160.53/1,736.72 = 831.83/x
3. Step 3: Cross multiply
   1,160.53x = 1,736.72 × 831.83
4. Step 4: Simplify right side
   1,160.53x = 1,444,647.11
5. Step 5: Solve for x
   x = 1,444,647.11/1,160.53
6. Step 6: Final answer
   x = 1,244.82