Finding the Fourth Proportional to 1,436.00, 1,981.71 and 806.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.00 : 1,981.71 = 806.57 : x
2. Step 2: Convert to fraction form
   1,436.00/1,981.71 = 806.57/x
3. Step 3: Cross multiply
   1,436.00x = 1,981.71 × 806.57
4. Step 4: Simplify right side
   1,436.00x = 1,598,392.79
5. Step 5: Solve for x
   x = 1,598,392.79/1,436.00
6. Step 6: Final answer
   x = 1,113.08