Finding the Fourth Proportional to 2,752.56, 4,128.90 and 1,291.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,752.56 : 4,128.90 = 1,291.32 : x
2. Step 2: Convert to fraction form
   2,752.56/4,128.90 = 1,291.32/x
3. Step 3: Cross multiply
   2,752.56x = 4,128.90 × 1,291.32
4. Step 4: Simplify right side
   2,752.56x = 5,331,731.15
5. Step 5: Solve for x
   x = 5,331,731.15/2,752.56
6. Step 6: Final answer
   x = 1,937.01