Finding the Fourth Proportional to 1,046.69, 1,443.81 and 648.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.69 : 1,443.81 = 648.50 : x
2. Step 2: Convert to fraction form
   1,046.69/1,443.81 = 648.50/x
3. Step 3: Cross multiply
   1,046.69x = 1,443.81 × 648.50
4. Step 4: Simplify right side
   1,046.69x = 936,310.79
5. Step 5: Solve for x
   x = 936,310.79/1,046.69
6. Step 6: Final answer
   x = 894.54