Finding the Fourth Proportional to 2,019.51, 2,786.42 and 1,179.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.51 : 2,786.42 = 1,179.73 : x
2. Step 2: Convert to fraction form
   2,019.51/2,786.42 = 1,179.73/x
3. Step 3: Cross multiply
   2,019.51x = 2,786.42 × 1,179.73
4. Step 4: Simplify right side
   2,019.51x = 3,287,229.70
5. Step 5: Solve for x
   x = 3,287,229.70/2,019.51
6. Step 6: Final answer
   x = 1,627.74