Finding the Fourth Proportional to 1,447.52, 1,997.69 and 818.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,447.52 : 1,997.69 = 818.09 : x
2. Step 2: Convert to fraction form
   1,447.52/1,997.69 = 818.09/x
3. Step 3: Cross multiply
   1,447.52x = 1,997.69 × 818.09
4. Step 4: Simplify right side
   1,447.52x = 1,634,276.13
5. Step 5: Solve for x
   x = 1,634,276.13/1,447.52
6. Step 6: Final answer
   x = 1,129.02