Finding the Fourth Proportional to 3,967.57, 5,470.76 and 2,530.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,967.57 : 5,470.76 = 2,530.02 : x
2. Step 2: Convert to fraction form
   3,967.57/5,470.76 = 2,530.02/x
3. Step 3: Cross multiply
   3,967.57x = 5,470.76 × 2,530.02
4. Step 4: Simplify right side
   3,967.57x = 13,841,114.05
5. Step 5: Solve for x
   x = 13,841,114.05/3,967.57
6. Step 6: Final answer
   x = 3,488.56