Finding the Fourth Proportional to 3,434.78, 4,737.48 and 2,255.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,434.78 : 4,737.48 = 2,255.42 : x
2. Step 2: Convert to fraction form
   3,434.78/4,737.48 = 2,255.42/x
3. Step 3: Cross multiply
   3,434.78x = 4,737.48 × 2,255.42
4. Step 4: Simplify right side
   3,434.78x = 10,685,007.14
5. Step 5: Solve for x
   x = 10,685,007.14/3,434.78
6. Step 6: Final answer
   x = 3,110.83