Finding the Fourth Proportional to 1,436.42, 1,982.16 and 806.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.42 : 1,982.16 = 806.92 : x
2. Step 2: Convert to fraction form
   1,436.42/1,982.16 = 806.92/x
3. Step 3: Cross multiply
   1,436.42x = 1,982.16 × 806.92
4. Step 4: Simplify right side
   1,436.42x = 1,599,439.59
5. Step 5: Solve for x
   x = 1,599,439.59/1,436.42
6. Step 6: Final answer
   x = 1,113.49