Finding the Fourth Proportional to 1,131.26, 1,560.96 and 633.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.26 : 1,560.96 = 633.83 : x
2. Step 2: Convert to fraction form
   1,131.26/1,560.96 = 633.83/x
3. Step 3: Cross multiply
   1,131.26x = 1,560.96 × 633.83
4. Step 4: Simplify right side
   1,131.26x = 989,375.47
5. Step 5: Solve for x
   x = 989,375.47/1,131.26
6. Step 6: Final answer
   x = 874.58