Finding the Fourth Proportional to 1,158.72, 1,737.12 and 582.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158.72 : 1,737.12 = 582.24 : x
2. Step 2: Convert to fraction form
   1,158.72/1,737.12 = 582.24/x
3. Step 3: Cross multiply
   1,158.72x = 1,737.12 × 582.24
4. Step 4: Simplify right side
   1,158.72x = 1,011,420.75
5. Step 5: Solve for x
   x = 1,011,420.75/1,158.72
6. Step 6: Final answer
   x = 872.88