Finding the Fourth Proportional to 2,092.61, 3,139.61 and 1,118.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,092.61 : 3,139.61 = 1,118.49 : x
2. Step 2: Convert to fraction form
   2,092.61/3,139.61 = 1,118.49/x
3. Step 3: Cross multiply
   2,092.61x = 3,139.61 × 1,118.49
4. Step 4: Simplify right side
   2,092.61x = 3,511,616.80
5. Step 5: Solve for x
   x = 3,511,616.80/2,092.61
6. Step 6: Final answer
   x = 1,678.11