Finding the Fourth Proportional to 1,998.17, 2,995.56 and 1,119.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,998.17 : 2,995.56 = 1,119.96 : x
2. Step 2: Convert to fraction form
   1,998.17/2,995.56 = 1,119.96/x
3. Step 3: Cross multiply
   1,998.17x = 2,995.56 × 1,119.96
4. Step 4: Simplify right side
   1,998.17x = 3,354,907.38
5. Step 5: Solve for x
   x = 3,354,907.38/1,998.17
6. Step 6: Final answer
   x = 1,678.99