Finding the Fourth Proportional to 2,586.42, 3,570.05 and 2,454.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586.42 : 3,570.05 = 2,454.15 : x
2. Step 2: Convert to fraction form
   2,586.42/3,570.05 = 2,454.15/x
3. Step 3: Cross multiply
   2,586.42x = 3,570.05 × 2,454.15
4. Step 4: Simplify right side
   2,586.42x = 8,761,425.94
5. Step 5: Solve for x
   x = 8,761,425.94/2,586.42
6. Step 6: Final answer
   x = 3,387.47