Finding the Fourth Proportional to 1,998.31, 2,757.57 and 1,114.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,998.31 : 2,757.57 = 1,114.10 : x
2. Step 2: Convert to fraction form
   1,998.31/2,757.57 = 1,114.10/x
3. Step 3: Cross multiply
   1,998.31x = 2,757.57 × 1,114.10
4. Step 4: Simplify right side
   1,998.31x = 3,072,189.38
5. Step 5: Solve for x
   x = 3,072,189.38/1,998.31
6. Step 6: Final answer
   x = 1,537.39