Finding the Fourth Proportional to 3,406.10, 5,114.55 and 2,488.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,406.10 : 5,114.55 = 2,488.10 : x
2. Step 2: Convert to fraction form
   3,406.10/5,114.55 = 2,488.10/x
3. Step 3: Cross multiply
   3,406.10x = 5,114.55 × 2,488.10
4. Step 4: Simplify right side
   3,406.10x = 12,725,511.86
5. Step 5: Solve for x
   x = 12,725,511.86/3,406.10
6. Step 6: Final answer
   x = 3,736.09