Finding the Fourth Proportional to 8,437.86, 12,656.47 and 2,594.31

Step by Step Solution

1. Step 1: Write the proportion equation
   8,437.86 : 12,656.47 = 2,594.31 : x
2. Step 2: Convert to fraction form
   8,437.86/12,656.47 = 2,594.31/x
3. Step 3: Cross multiply
   8,437.86x = 12,656.47 × 2,594.31
4. Step 4: Simplify right side
   8,437.86x = 32,834,806.69
5. Step 5: Solve for x
   x = 32,834,806.69/8,437.86
6. Step 6: Final answer
   x = 3,891.37