Finding the Fourth Proportional to 1,047.41, 1,445.48 and 627.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.41 : 1,445.48 = 627.83 : x
2. Step 2: Convert to fraction form
   1,047.41/1,445.48 = 627.83/x
3. Step 3: Cross multiply
   1,047.41x = 1,445.48 × 627.83
4. Step 4: Simplify right side
   1,047.41x = 907,505.34
5. Step 5: Solve for x
   x = 907,505.34/1,047.41
6. Step 6: Final answer
   x = 866.43