Finding the Fourth Proportional to 1,049.97, 1,448.89 and 630.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,049.97 : 1,448.89 = 630.07 : x
2. Step 2: Convert to fraction form
   1,049.97/1,448.89 = 630.07/x
3. Step 3: Cross multiply
   1,049.97x = 1,448.89 × 630.07
4. Step 4: Simplify right side
   1,049.97x = 912,902.12
5. Step 5: Solve for x
   x = 912,902.12/1,049.97
6. Step 6: Final answer
   x = 869.46