Finding the Fourth Proportional to 2,196.32, 3,292.60 and 962.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.32 : 3,292.60 = 962.78 : x
2. Step 2: Convert to fraction form
   2,196.32/3,292.60 = 962.78/x
3. Step 3: Cross multiply
   2,196.32x = 3,292.60 × 962.78
4. Step 4: Simplify right side
   2,196.32x = 3,170,049.43
5. Step 5: Solve for x
   x = 3,170,049.43/2,196.32
6. Step 6: Final answer
   x = 1,443.35