Finding the Fourth Proportional to 1,028.52, 1,418.77 and 635.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,028.52 : 1,418.77 = 635.27 : x
2. Step 2: Convert to fraction form
   1,028.52/1,418.77 = 635.27/x
3. Step 3: Cross multiply
   1,028.52x = 1,418.77 × 635.27
4. Step 4: Simplify right side
   1,028.52x = 901,302.02
5. Step 5: Solve for x
   x = 901,302.02/1,028.52
6. Step 6: Final answer
   x = 876.31