Finding the Fourth Proportional to 2,488.94, 3,435.96 and 1,605.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,488.94 : 3,435.96 = 1,605.24 : x
2. Step 2: Convert to fraction form
   2,488.94/3,435.96 = 1,605.24/x
3. Step 3: Cross multiply
   2,488.94x = 3,435.96 × 1,605.24
4. Step 4: Simplify right side
   2,488.94x = 5,515,540.43
5. Step 5: Solve for x
   x = 5,515,540.43/2,488.94
6. Step 6: Final answer
   x = 2,216.02