Finding the Fourth Proportional to 2,641.41, 3,960.90 and 997.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641.41 : 3,960.90 = 997.52 : x
2. Step 2: Convert to fraction form
   2,641.41/3,960.90 = 997.52/x
3. Step 3: Cross multiply
   2,641.41x = 3,960.90 × 997.52
4. Step 4: Simplify right side
   2,641.41x = 3,951,057.16
5. Step 5: Solve for x
   x = 3,951,057.16/2,641.41
6. Step 6: Final answer
   x = 1,495.81