Finding the Fourth Proportional to 1,048.29, 1,443.33 and 798.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,048.29 : 1,443.33 = 798.81 : x
2. Step 2: Convert to fraction form
   1,048.29/1,443.33 = 798.81/x
3. Step 3: Cross multiply
   1,048.29x = 1,443.33 × 798.81
4. Step 4: Simplify right side
   1,048.29x = 1,152,946.44
5. Step 5: Solve for x
   x = 1,152,946.44/1,048.29
6. Step 6: Final answer
   x = 1,099.84