Finding the Fourth Proportional to 2,229.92, 3,361.52 and 2,196.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,229.92 : 3,361.52 = 2,196.32 : x
2. Step 2: Convert to fraction form
   2,229.92/3,361.52 = 2,196.32/x
3. Step 3: Cross multiply
   2,229.92x = 3,361.52 × 2,196.32
4. Step 4: Simplify right side
   2,229.92x = 7,382,973.61
5. Step 5: Solve for x
   x = 7,382,973.61/2,229.92
6. Step 6: Final answer
   x = 3,310.87