Finding the Fourth Proportional to 2,678.50, 4,016.01 and 1,119.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,678.50 : 4,016.01 = 1,119.55 : x
2. Step 2: Convert to fraction form
   2,678.50/4,016.01 = 1,119.55/x
3. Step 3: Cross multiply
   2,678.50x = 4,016.01 × 1,119.55
4. Step 4: Simplify right side
   2,678.50x = 4,496,124.00
5. Step 5: Solve for x
   x = 4,496,124.00/2,678.50
6. Step 6: Final answer
   x = 1,678.60