Finding the Fourth Proportional to 1,129.59, 1,695.15 and 582.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,129.59 : 1,695.15 = 582.15 : x
2. Step 2: Convert to fraction form
   1,129.59/1,695.15 = 582.15/x
3. Step 3: Cross multiply
   1,129.59x = 1,695.15 × 582.15
4. Step 4: Simplify right side
   1,129.59x = 986,831.57
5. Step 5: Solve for x
   x = 986,831.57/1,129.59
6. Step 6: Final answer
   x = 873.62