Finding the Fourth Proportional to 1,436.27, 1,982.04 and 806.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.27 : 1,982.04 = 806.80 : x
2. Step 2: Convert to fraction form
   1,436.27/1,982.04 = 806.80/x
3. Step 3: Cross multiply
   1,436.27x = 1,982.04 × 806.80
4. Step 4: Simplify right side
   1,436.27x = 1,599,110.15
5. Step 5: Solve for x
   x = 1,599,110.15/1,436.27
6. Step 6: Final answer
   x = 1,113.38