Finding the Fourth Proportional to 1,998.09, 2,757.24 and 1,158.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,998.09 : 2,757.24 = 1,158.83 : x
2. Step 2: Convert to fraction form
   1,998.09/2,757.24 = 1,158.83/x
3. Step 3: Cross multiply
   1,998.09x = 2,757.24 × 1,158.83
4. Step 4: Simplify right side
   1,998.09x = 3,195,172.43
5. Step 5: Solve for x
   x = 3,195,172.43/1,998.09
6. Step 6: Final answer
   x = 1,599.11