Finding the Fourth Proportional to 2,551.78, 3,825.24 and 1,234.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,551.78 : 3,825.24 = 1,234.72 : x
2. Step 2: Convert to fraction form
   2,551.78/3,825.24 = 1,234.72/x
3. Step 3: Cross multiply
   2,551.78x = 3,825.24 × 1,234.72
4. Step 4: Simplify right side
   2,551.78x = 4,723,100.33
5. Step 5: Solve for x
   x = 4,723,100.33/2,551.78
6. Step 6: Final answer
   x = 1,850.90