Finding the Fourth Proportional to 2,019.43, 3,028.20 and 849.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.43 : 3,028.20 = 849.18 : x
2. Step 2: Convert to fraction form
   2,019.43/3,028.20 = 849.18/x
3. Step 3: Cross multiply
   2,019.43x = 3,028.20 × 849.18
4. Step 4: Simplify right side
   2,019.43x = 2,571,486.88
5. Step 5: Solve for x
   x = 2,571,486.88/2,019.43
6. Step 6: Final answer
   x = 1,273.37