Finding the Fourth Proportional to 1,605.69, 2,410.97 and 1,424.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,605.69 : 2,410.97 = 1,424.25 : x
2. Step 2: Convert to fraction form
   1,605.69/2,410.97 = 1,424.25/x
3. Step 3: Cross multiply
   1,605.69x = 2,410.97 × 1,424.25
4. Step 4: Simplify right side
   1,605.69x = 3,433,816.90
5. Step 5: Solve for x
   x = 3,433,816.90/1,605.69
6. Step 6: Final answer
   x = 2,138.53