Finding the Fourth Proportional to 2,496.50, 3,744.73 and 647.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,496.50 : 3,744.73 = 647.61 : x
2. Step 2: Convert to fraction form
   2,496.50/3,744.73 = 647.61/x
3. Step 3: Cross multiply
   2,496.50x = 3,744.73 × 647.61
4. Step 4: Simplify right side
   2,496.50x = 2,425,124.60
5. Step 5: Solve for x
   x = 2,425,124.60/2,496.50
6. Step 6: Final answer
   x = 971.41