Finding the Fourth Proportional to 2,019.39, 3,028.83 and 849.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.39 : 3,028.83 = 849.57 : x
2. Step 2: Convert to fraction form
   2,019.39/3,028.83 = 849.57/x
3. Step 3: Cross multiply
   2,019.39x = 3,028.83 × 849.57
4. Step 4: Simplify right side
   2,019.39x = 2,573,203.10
5. Step 5: Solve for x
   x = 2,573,203.10/2,019.39
6. Step 6: Final answer
   x = 1,274.25