Finding the Fourth Proportional to 1,047.30, 1,444.96 and 627.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.30 : 1,444.96 = 627.48 : x
2. Step 2: Convert to fraction form
   1,047.30/1,444.96 = 627.48/x
3. Step 3: Cross multiply
   1,047.30x = 1,444.96 × 627.48
4. Step 4: Simplify right side
   1,047.30x = 906,683.50
5. Step 5: Solve for x
   x = 906,683.50/1,047.30
6. Step 6: Final answer
   x = 865.73