Finding the Fourth Proportional to 1,605.79, 2,392.82 and 1,442.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,605.79 : 2,392.82 = 1,442.28 : x
2. Step 2: Convert to fraction form
   1,605.79/2,392.82 = 1,442.28/x
3. Step 3: Cross multiply
   1,605.79x = 2,392.82 × 1,442.28
4. Step 4: Simplify right side
   1,605.79x = 3,451,116.43
5. Step 5: Solve for x
   x = 3,451,116.43/1,605.79
6. Step 6: Final answer
   x = 2,149.17