Finding the Fourth Proportional to 2,760.06, 4,140.74 and 1,028.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,760.06 : 4,140.74 = 1,028.69 : x
2. Step 2: Convert to fraction form
   2,760.06/4,140.74 = 1,028.69/x
3. Step 3: Cross multiply
   2,760.06x = 4,140.74 × 1,028.69
4. Step 4: Simplify right side
   2,760.06x = 4,259,537.83
5. Step 5: Solve for x
   x = 4,259,537.83/2,760.06
6. Step 6: Final answer
   x = 1,543.28