Finding the Fourth Proportional to 1,150.98, 1,726.56 and 798.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.98 : 1,726.56 = 798.90 : x
2. Step 2: Convert to fraction form
   1,150.98/1,726.56 = 798.90/x
3. Step 3: Cross multiply
   1,150.98x = 1,726.56 × 798.90
4. Step 4: Simplify right side
   1,150.98x = 1,379,348.78
5. Step 5: Solve for x
   x = 1,379,348.78/1,150.98
6. Step 6: Final answer
   x = 1,198.41