Finding the Fourth Proportional to 2,759.76, 4,140.72 and 1,028.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,759.76 : 4,140.72 = 1,028.52 : x
2. Step 2: Convert to fraction form
   2,759.76/4,140.72 = 1,028.52/x
3. Step 3: Cross multiply
   2,759.76x = 4,140.72 × 1,028.52
4. Step 4: Simplify right side
   2,759.76x = 4,258,813.33
5. Step 5: Solve for x
   x = 4,258,813.33/2,759.76
6. Step 6: Final answer
   x = 1,543.18