Finding the Fourth Proportional to 1,249.82, 1,724.82 and 808.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,249.82 : 1,724.82 = 808.10 : x
2. Step 2: Convert to fraction form
   1,249.82/1,724.82 = 808.10/x
3. Step 3: Cross multiply
   1,249.82x = 1,724.82 × 808.10
4. Step 4: Simplify right side
   1,249.82x = 1,393,827.04
5. Step 5: Solve for x
   x = 1,393,827.04/1,249.82
6. Step 6: Final answer
   x = 1,115.22