Finding the Fourth Proportional to 2,387.62, 3,583.86 and 1,605.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387.62 : 3,583.86 = 1,605.16 : x
2. Step 2: Convert to fraction form
   2,387.62/3,583.86 = 1,605.16/x
3. Step 3: Cross multiply
   2,387.62x = 3,583.86 × 1,605.16
4. Step 4: Simplify right side
   2,387.62x = 5,752,668.72
5. Step 5: Solve for x
   x = 5,752,668.72/2,387.62
6. Step 6: Final answer
   x = 2,409.37