Finding the Fourth Proportional to 1,049.93, 1,448.79 and 630.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,049.93 : 1,448.79 = 630.27 : x
2. Step 2: Convert to fraction form
   1,049.93/1,448.79 = 630.27/x
3. Step 3: Cross multiply
   1,049.93x = 1,448.79 × 630.27
4. Step 4: Simplify right side
   1,049.93x = 913,128.87
5. Step 5: Solve for x
   x = 913,128.87/1,049.93
6. Step 6: Final answer
   x = 869.70