Finding the Fourth Proportional to 2,228, 3,073.52 and 1,431.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,228 : 3,073.52 = 1,431.52 : x
2. Step 2: Convert to fraction form
   2,228/3,073.52 = 1,431.52/x
3. Step 3: Cross multiply
   2,228x = 3,073.52 × 1,431.52
4. Step 4: Simplify right side
   2,228x = 4,399,805.35
5. Step 5: Solve for x
   x = 4,399,805.35/2,228
6. Step 6: Final answer
   x = 1,974.78