Finding the Fourth Proportional to 3,711.08, 5,118.72 and 2,530.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,711.08 : 5,118.72 = 2,530.16 : x
2. Step 2: Convert to fraction form
   3,711.08/5,118.72 = 2,530.16/x
3. Step 3: Cross multiply
   3,711.08x = 5,118.72 × 2,530.16
4. Step 4: Simplify right side
   3,711.08x = 12,951,180.60
5. Step 5: Solve for x
   x = 12,951,180.60/3,711.08
6. Step 6: Final answer
   x = 3,489.87