Finding the Fourth Proportional to 1,196.32, 1,650.94 and 724.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,196.32 : 1,650.94 = 724.21 : x
2. Step 2: Convert to fraction form
   1,196.32/1,650.94 = 724.21/x
3. Step 3: Cross multiply
   1,196.32x = 1,650.94 × 724.21
4. Step 4: Simplify right side
   1,196.32x = 1,195,621.32
5. Step 5: Solve for x
   x = 1,195,621.32/1,196.32
6. Step 6: Final answer
   x = 999.42