Finding the Fourth Proportional to 2,877.72, 4,315.71 and 1,028.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,877.72 : 4,315.71 = 1,028.41 : x
2. Step 2: Convert to fraction form
   2,877.72/4,315.71 = 1,028.41/x
3. Step 3: Cross multiply
   2,877.72x = 4,315.71 × 1,028.41
4. Step 4: Simplify right side
   2,877.72x = 4,438,327.99
5. Step 5: Solve for x
   x = 4,438,327.99/2,877.72
6. Step 6: Final answer
   x = 1,542.31