Finding the Fourth Proportional to 1,131.02, 1,560.82 and 633.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.02 : 1,560.82 = 633.70 : x
2. Step 2: Convert to fraction form
   1,131.02/1,560.82 = 633.70/x
3. Step 3: Cross multiply
   1,131.02x = 1,560.82 × 633.70
4. Step 4: Simplify right side
   1,131.02x = 989,091.63
5. Step 5: Solve for x
   x = 989,091.63/1,131.02
6. Step 6: Final answer
   x = 874.51