Finding the Fourth Proportional to 1,447.33, 1,997.25 and 809.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,447.33 : 1,997.25 = 809.16 : x
2. Step 2: Convert to fraction form
   1,447.33/1,997.25 = 809.16/x
3. Step 3: Cross multiply
   1,447.33x = 1,997.25 × 809.16
4. Step 4: Simplify right side
   1,447.33x = 1,616,090.76
5. Step 5: Solve for x
   x = 1,616,090.76/1,447.33
6. Step 6: Final answer
   x = 1,116.60