Finding the Fourth Proportional to 1,196.13, 1,650.98 and 724.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.13 : 1,650.98 = 724.31 : x
2. Step 2: Convert to fraction form
   1,196.13/1,650.98 = 724.31/x
3. Step 3: Cross multiply
   1,196.13x = 1,650.98 × 724.31
4. Step 4: Simplify right side
   1,196.13x = 1,195,809.45
5. Step 5: Solve for x
   x = 1,195,809.45/1,196.13
6. Step 6: Final answer
   x = 999.73