Finding the Fourth Proportional to 2,019.19, 2,785.99 and 1,179.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.19 : 2,785.99 = 1,179.42 : x
2. Step 2: Convert to fraction form
   2,019.19/2,785.99 = 1,179.42/x
3. Step 3: Cross multiply
   2,019.19x = 2,785.99 × 1,179.42
4. Step 4: Simplify right side
   2,019.19x = 3,285,852.33
5. Step 5: Solve for x
   x = 3,285,852.33/2,019.19
6. Step 6: Final answer
   x = 1,627.31