Finding the Fourth Proportional to 8,437.83, 12,648.27 and 2,887.38

Step by Step Solution

1. Step 1: Write the proportion equation
   8,437.83 : 12,648.27 = 2,887.38 : x
2. Step 2: Convert to fraction form
   8,437.83/12,648.27 = 2,887.38/x
3. Step 3: Cross multiply
   8,437.83x = 12,648.27 × 2,887.38
4. Step 4: Simplify right side
   8,437.83x = 36,520,361.83
5. Step 5: Solve for x
   x = 36,520,361.83/8,437.83
6. Step 6: Final answer
   x = 4,328.17