Finding the Fourth Proportional to 3,867.98, 5,335.17 and 2,470.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,867.98 : 5,335.17 = 2,470.10 : x
2. Step 2: Convert to fraction form
   3,867.98/5,335.17 = 2,470.10/x
3. Step 3: Cross multiply
   3,867.98x = 5,335.17 × 2,470.10
4. Step 4: Simplify right side
   3,867.98x = 13,178,403.42
5. Step 5: Solve for x
   x = 13,178,403.42/3,867.98
6. Step 6: Final answer
   x = 3,407.05