Finding the Fourth Proportional to 2,752.27, 4,128.82 and 997.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,752.27 : 4,128.82 = 997.40 : x
2. Step 2: Convert to fraction form
   2,752.27/4,128.82 = 997.40/x
3. Step 3: Cross multiply
   2,752.27x = 4,128.82 × 997.40
4. Step 4: Simplify right side
   2,752.27x = 4,118,092.90
5. Step 5: Solve for x
   x = 4,118,092.90/2,752.27
6. Step 6: Final answer
   x = 1,496.25