Finding the Fourth Proportional to 1,047.55, 1,568.68 and 630.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.55 : 1,568.68 = 630.82 : x
2. Step 2: Convert to fraction form
   1,047.55/1,568.68 = 630.82/x
3. Step 3: Cross multiply
   1,047.55x = 1,568.68 × 630.82
4. Step 4: Simplify right side
   1,047.55x = 989,554.72
5. Step 5: Solve for x
   x = 989,554.72/1,047.55
6. Step 6: Final answer
   x = 944.64