Finding the Fourth Proportional to 2,019.39, 3,022.85 and 1,724.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.39 : 3,022.85 = 1,724.19 : x
2. Step 2: Convert to fraction form
   2,019.39/3,022.85 = 1,724.19/x
3. Step 3: Cross multiply
   2,019.39x = 3,022.85 × 1,724.19
4. Step 4: Simplify right side
   2,019.39x = 5,211,959.12
5. Step 5: Solve for x
   x = 5,211,959.12/2,019.39
6. Step 6: Final answer
   x = 2,580.96