Finding the Fourth Proportional to 3,118.10, 4,682.55 and 2,200.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,118.10 : 4,682.55 = 2,200.10 : x
2. Step 2: Convert to fraction form
   3,118.10/4,682.55 = 2,200.10/x
3. Step 3: Cross multiply
   3,118.10x = 4,682.55 × 2,200.10
4. Step 4: Simplify right side
   3,118.10x = 10,302,078.26
5. Step 5: Solve for x
   x = 10,302,078.26/3,118.10
6. Step 6: Final answer
   x = 3,303.96