Finding the Fourth Proportional to 1,436.56, 1,982.48 and 807.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.56 : 1,982.48 = 807.23 : x
2. Step 2: Convert to fraction form
   1,436.56/1,982.48 = 807.23/x
3. Step 3: Cross multiply
   1,436.56x = 1,982.48 × 807.23
4. Step 4: Simplify right side
   1,436.56x = 1,600,317.33
5. Step 5: Solve for x
   x = 1,600,317.33/1,436.56
6. Step 6: Final answer
   x = 1,113.99