Finding the Fourth Proportional to 2,877.63, 4,315.38 and 1,028.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,877.63 : 4,315.38 = 1,028.25 : x
2. Step 2: Convert to fraction form
   2,877.63/4,315.38 = 1,028.25/x
3. Step 3: Cross multiply
   2,877.63x = 4,315.38 × 1,028.25
4. Step 4: Simplify right side
   2,877.63x = 4,437,289.49
5. Step 5: Solve for x
   x = 4,437,289.49/2,877.63
6. Step 6: Final answer
   x = 1,541.99