Finding the Fourth Proportional to 1,196.47, 1,650.67 and 724.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.47 : 1,650.67 = 724.05 : x
2. Step 2: Convert to fraction form
   1,196.47/1,650.67 = 724.05/x
3. Step 3: Cross multiply
   1,196.47x = 1,650.67 × 724.05
4. Step 4: Simplify right side
   1,196.47x = 1,195,161.24
5. Step 5: Solve for x
   x = 1,195,161.24/1,196.47
6. Step 6: Final answer
   x = 998.91