Finding the Fourth Proportional to 1,047.05, 1,444.92 and 627.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.05 : 1,444.92 = 627.42 : x
2. Step 2: Convert to fraction form
   1,047.05/1,444.92 = 627.42/x
3. Step 3: Cross multiply
   1,047.05x = 1,444.92 × 627.42
4. Step 4: Simplify right side
   1,047.05x = 906,571.71
5. Step 5: Solve for x
   x = 906,571.71/1,047.05
6. Step 6: Final answer
   x = 865.83