Finding the Fourth Proportional to 1,117.02, 1,541.82 and 724.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,117.02 : 1,541.82 = 724.08 : x
2. Step 2: Convert to fraction form
   1,117.02/1,541.82 = 724.08/x
3. Step 3: Cross multiply
   1,117.02x = 1,541.82 × 724.08
4. Step 4: Simplify right side
   1,117.02x = 1,116,401.03
5. Step 5: Solve for x
   x = 1,116,401.03/1,117.02
6. Step 6: Final answer
   x = 999.45