Finding the Fourth Proportional to 2,196.80, 3,292.32 and 896.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196.80 : 3,292.32 = 896.78 : x
2. Step 2: Convert to fraction form
   2,196.80/3,292.32 = 896.78/x
3. Step 3: Cross multiply
   2,196.80x = 3,292.32 × 896.78
4. Step 4: Simplify right side
   2,196.80x = 2,952,486.73
5. Step 5: Solve for x
   x = 2,952,486.73/2,196.80
6. Step 6: Final answer
   x = 1,343.99