Finding the Fourth Proportional to 1,047.52, 1,445.69 and 627.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.52 : 1,445.69 = 627.82 : x
2. Step 2: Convert to fraction form
   1,047.52/1,445.69 = 627.82/x
3. Step 3: Cross multiply
   1,047.52x = 1,445.69 × 627.82
4. Step 4: Simplify right side
   1,047.52x = 907,633.10
5. Step 5: Solve for x
   x = 907,633.10/1,047.52
6. Step 6: Final answer
   x = 866.46