Finding the Fourth Proportional to 2,680, 4,018.28 and 1,119.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,680 : 4,018.28 = 1,119.59 : x
2. Step 2: Convert to fraction form
   2,680/4,018.28 = 1,119.59/x
3. Step 3: Cross multiply
   2,680x = 4,018.28 × 1,119.59
4. Step 4: Simplify right side
   2,680x = 4,498,800.42
5. Step 5: Solve for x
   x = 4,498,800.42/2,680
6. Step 6: Final answer
   x = 1,678.66