Finding the Fourth Proportional to 2,752.89, 4,128.27 and 997.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,752.89 : 4,128.27 = 997.52 : x
2. Step 2: Convert to fraction form
   2,752.89/4,128.27 = 997.52/x
3. Step 3: Cross multiply
   2,752.89x = 4,128.27 × 997.52
4. Step 4: Simplify right side
   2,752.89x = 4,118,007.51
5. Step 5: Solve for x
   x = 4,118,007.51/2,752.89
6. Step 6: Final answer
   x = 1,495.89