Finding the Fourth Proportional to 1,447.49, 1,997.73 and 818.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,447.49 : 1,997.73 = 818.27 : x
2. Step 2: Convert to fraction form
   1,447.49/1,997.73 = 818.27/x
3. Step 3: Cross multiply
   1,447.49x = 1,997.73 × 818.27
4. Step 4: Simplify right side
   1,447.49x = 1,634,672.54
5. Step 5: Solve for x
   x = 1,634,672.54/1,447.49
6. Step 6: Final answer
   x = 1,129.32