Finding the Fourth Proportional to 1,196.84, 1,650.92 and 724.40

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.84 : 1,650.92 = 724.40 : x
2. Step 2: Convert to fraction form
   1,196.84/1,650.92 = 724.40/x
3. Step 3: Cross multiply
   1,196.84x = 1,650.92 × 724.40
4. Step 4: Simplify right side
   1,196.84x = 1,195,926.45
5. Step 5: Solve for x
   x = 1,195,926.45/1,196.84
6. Step 6: Final answer
   x = 999.24