Finding the Fourth Proportional to 1,196.55, 1,650.88 and 724.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.55 : 1,650.88 = 724.70 : x
2. Step 2: Convert to fraction form
   1,196.55/1,650.88 = 724.70/x
3. Step 3: Cross multiply
   1,196.55x = 1,650.88 × 724.70
4. Step 4: Simplify right side
   1,196.55x = 1,196,388.48
5. Step 5: Solve for x
   x = 1,196,388.48/1,196.55
6. Step 6: Final answer
   x = 999.87