Finding the Fourth Proportional to 1,116.32, 1,541.43 and 724.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116.32 : 1,541.43 = 724.01 : x
2. Step 2: Convert to fraction form
   1,116.32/1,541.43 = 724.01/x
3. Step 3: Cross multiply
   1,116.32x = 1,541.43 × 724.01
4. Step 4: Simplify right side
   1,116.32x = 1,116,003.03
5. Step 5: Solve for x
   x = 1,116,003.03/1,116.32
6. Step 6: Final answer
   x = 999.72