Finding the Fourth Proportional to 8,651.86, 12,978.64 and 2,326.66

Step by Step Solution

1. Step 1: Write the proportion equation
   8,651.86 : 12,978.64 = 2,326.66 : x
2. Step 2: Convert to fraction form
   8,651.86/12,978.64 = 2,326.66/x
3. Step 3: Cross multiply
   8,651.86x = 12,978.64 × 2,326.66
4. Step 4: Simplify right side
   8,651.86x = 30,196,882.54
5. Step 5: Solve for x
   x = 30,196,882.54/8,651.86
6. Step 6: Final answer
   x = 3,490.22