Finding the Fourth Proportional to 1,442.43, 2,162.39 and 1,224.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,442.43 : 2,162.39 = 1,224.47 : x
2. Step 2: Convert to fraction form
   1,442.43/2,162.39 = 1,224.47/x
3. Step 3: Cross multiply
   1,442.43x = 2,162.39 × 1,224.47
4. Step 4: Simplify right side
   1,442.43x = 2,647,764.75
5. Step 5: Solve for x
   x = 2,647,764.75/1,442.43
6. Step 6: Final answer
   x = 1,835.63