Finding the Fourth Proportional to 1,046.48, 1,443.30 and 673.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.48 : 1,443.30 = 673.50 : x
2. Step 2: Convert to fraction form
   1,046.48/1,443.30 = 673.50/x
3. Step 3: Cross multiply
   1,046.48x = 1,443.30 × 673.50
4. Step 4: Simplify right side
   1,046.48x = 972,062.55
5. Step 5: Solve for x
   x = 972,062.55/1,046.48
6. Step 6: Final answer
   x = 928.89