Finding the Fourth Proportional to 1,050.17, 1,448.72 and 630.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.17 : 1,448.72 = 630.32 : x
2. Step 2: Convert to fraction form
   1,050.17/1,448.72 = 630.32/x
3. Step 3: Cross multiply
   1,050.17x = 1,448.72 × 630.32
4. Step 4: Simplify right side
   1,050.17x = 913,150.42
5. Step 5: Solve for x
   x = 913,150.42/1,050.17
6. Step 6: Final answer
   x = 869.53