Finding the Fourth Proportional to 2,253.25, 3,379.83 and 1,020.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,253.25 : 3,379.83 = 1,020.43 : x
2. Step 2: Convert to fraction form
   2,253.25/3,379.83 = 1,020.43/x
3. Step 3: Cross multiply
   2,253.25x = 3,379.83 × 1,020.43
4. Step 4: Simplify right side
   2,253.25x = 3,448,879.93
5. Step 5: Solve for x
   x = 3,448,879.93/2,253.25
6. Step 6: Final answer
   x = 1,530.62