Finding the Fourth Proportional to 8,644.98, 12,969.39 and 2,488.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,644.98 : 12,969.39 = 2,488.50 : x
2. Step 2: Convert to fraction form
   8,644.98/12,969.39 = 2,488.50/x
3. Step 3: Cross multiply
   8,644.98x = 12,969.39 × 2,488.50
4. Step 4: Simplify right side
   8,644.98x = 32,274,327.02
5. Step 5: Solve for x
   x = 32,274,327.02/8,644.98
6. Step 6: Final answer
   x = 3,733.30