Finding the Fourth Proportional to 1,448.37, 1,998.73 and 818.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,448.37 : 1,998.73 = 818.88 : x
2. Step 2: Convert to fraction form
   1,448.37/1,998.73 = 818.88/x
3. Step 3: Cross multiply
   1,448.37x = 1,998.73 × 818.88
4. Step 4: Simplify right side
   1,448.37x = 1,636,732.72
5. Step 5: Solve for x
   x = 1,636,732.72/1,448.37
6. Step 6: Final answer
   x = 1,130.05