Finding the Fourth Proportional to 2,021.38, 3,033.90 and 852.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,021.38 : 3,033.90 = 852.25 : x
2. Step 2: Convert to fraction form
   2,021.38/3,033.90 = 852.25/x
3. Step 3: Cross multiply
   2,021.38x = 3,033.90 × 852.25
4. Step 4: Simplify right side
   2,021.38x = 2,585,637.01
5. Step 5: Solve for x
   x = 2,585,637.01/2,021.38
6. Step 6: Final answer
   x = 1,279.15