Finding the Fourth Proportional to 2,020.42, 3,028.38 and 850.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,020.42 : 3,028.38 = 850.08 : x
2. Step 2: Convert to fraction form
   2,020.42/3,028.38 = 850.08/x
3. Step 3: Cross multiply
   2,020.42x = 3,028.38 × 850.08
4. Step 4: Simplify right side
   2,020.42x = 2,574,357.10
5. Step 5: Solve for x
   x = 2,574,357.10/2,020.42
6. Step 6: Final answer
   x = 1,274.17