Finding the Fourth Proportional to 2,760.09, 4,137.71 and 1,028.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,760.09 : 4,137.71 = 1,028.31 : x
2. Step 2: Convert to fraction form
   2,760.09/4,137.71 = 1,028.31/x
3. Step 3: Cross multiply
   2,760.09x = 4,137.71 × 1,028.31
4. Step 4: Simplify right side
   2,760.09x = 4,254,843.43
5. Step 5: Solve for x
   x = 4,254,843.43/2,760.09
6. Step 6: Final answer
   x = 1,541.56