Finding the Fourth Proportional to 1,448.03, 1,998.54 and 818.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,448.03 : 1,998.54 = 818.59 : x
2. Step 2: Convert to fraction form
   1,448.03/1,998.54 = 818.59/x
3. Step 3: Cross multiply
   1,448.03x = 1,998.54 × 818.59
4. Step 4: Simplify right side
   1,448.03x = 1,635,981.12
5. Step 5: Solve for x
   x = 1,635,981.12/1,448.03
6. Step 6: Final answer
   x = 1,129.80