Finding the Fourth Proportional to 3,445.72, 4,755.55 and 3,351.90

Step by Step Solution

1. Step 1: Write the proportion equation
   3,445.72 : 4,755.55 = 3,351.90 : x
2. Step 2: Convert to fraction form
   3,445.72/4,755.55 = 3,351.90/x
3. Step 3: Cross multiply
   3,445.72x = 4,755.55 × 3,351.90
4. Step 4: Simplify right side
   3,445.72x = 15,940,103.59
5. Step 5: Solve for x
   x = 15,940,103.59/3,445.72
6. Step 6: Final answer
   x = 4,626.06