Finding the Fourth Proportional to 2,196.20, 3,294.38 and 657.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.20 : 3,294.38 = 657.32 : x
2. Step 2: Convert to fraction form
   2,196.20/3,294.38 = 657.32/x
3. Step 3: Cross multiply
   2,196.20x = 3,294.38 × 657.32
4. Step 4: Simplify right side
   2,196.20x = 2,165,461.86
5. Step 5: Solve for x
   x = 2,165,461.86/2,196.20
6. Step 6: Final answer
   x = 986.00