Finding the Fourth Proportional to 1,196.38, 1,651.35 and 724.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.38 : 1,651.35 = 724.28 : x
2. Step 2: Convert to fraction form
   1,196.38/1,651.35 = 724.28/x
3. Step 3: Cross multiply
   1,196.38x = 1,651.35 × 724.28
4. Step 4: Simplify right side
   1,196.38x = 1,196,039.78
5. Step 5: Solve for x
   x = 1,196,039.78/1,196.38
6. Step 6: Final answer
   x = 999.72