Finding the Fourth Proportional to 3,192.78, 4,404.78 and 2,355.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,192.78 : 4,404.78 = 2,355.50 : x
2. Step 2: Convert to fraction form
   3,192.78/4,404.78 = 2,355.50/x
3. Step 3: Cross multiply
   3,192.78x = 4,404.78 × 2,355.50
4. Step 4: Simplify right side
   3,192.78x = 10,375,459.29
5. Step 5: Solve for x
   x = 10,375,459.29/3,192.78
6. Step 6: Final answer
   x = 3,249.66