Finding the Fourth Proportional to 1,436.37, 1,982.01 and 806.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.37 : 1,982.01 = 806.81 : x
2. Step 2: Convert to fraction form
   1,436.37/1,982.01 = 806.81/x
3. Step 3: Cross multiply
   1,436.37x = 1,982.01 × 806.81
4. Step 4: Simplify right side
   1,436.37x = 1,599,095.58
5. Step 5: Solve for x
   x = 1,599,095.58/1,436.37
6. Step 6: Final answer
   x = 1,113.29