Finding the Fourth Proportional to 2,589.86, 3,866.01 and 2,397.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,589.86 : 3,866.01 = 2,397.15 : x
2. Step 2: Convert to fraction form
   2,589.86/3,866.01 = 2,397.15/x
3. Step 3: Cross multiply
   2,589.86x = 3,866.01 × 2,397.15
4. Step 4: Simplify right side
   2,589.86x = 9,267,405.87
5. Step 5: Solve for x
   x = 9,267,405.87/2,589.86
6. Step 6: Final answer
   x = 3,578.35