Finding the Fourth Proportional to 3,434.90, 5,147.71 and 2,506.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,434.90 : 5,147.71 = 2,506.10 : x
2. Step 2: Convert to fraction form
   3,434.90/5,147.71 = 2,506.10/x
3. Step 3: Cross multiply
   3,434.90x = 5,147.71 × 2,506.10
4. Step 4: Simplify right side
   3,434.90x = 12,900,676.03
5. Step 5: Solve for x
   x = 12,900,676.03/3,434.90
6. Step 6: Final answer
   x = 3,755.76