Finding the Fourth Proportional to 1,447.48, 1,997.81 and 818.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,447.48 : 1,997.81 = 818.02 : x
2. Step 2: Convert to fraction form
   1,447.48/1,997.81 = 818.02/x
3. Step 3: Cross multiply
   1,447.48x = 1,997.81 × 818.02
4. Step 4: Simplify right side
   1,447.48x = 1,634,247.59
5. Step 5: Solve for x
   x = 1,634,247.59/1,447.48
6. Step 6: Final answer
   x = 1,129.03