Finding the Fourth Proportional to 1,132.86, 1,563.31 and 635.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,132.86 : 1,563.31 = 635.53 : x
2. Step 2: Convert to fraction form
   1,132.86/1,563.31 = 635.53/x
3. Step 3: Cross multiply
   1,132.86x = 1,563.31 × 635.53
4. Step 4: Simplify right side
   1,132.86x = 993,530.40
5. Step 5: Solve for x
   x = 993,530.40/1,132.86
6. Step 6: Final answer
   x = 877.01