Finding the Fourth Proportional to 2,653.88, 3,662.70 and 1,605.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,653.88 : 3,662.70 = 1,605.96 : x
2. Step 2: Convert to fraction form
   2,653.88/3,662.70 = 1,605.96/x
3. Step 3: Cross multiply
   2,653.88x = 3,662.70 × 1,605.96
4. Step 4: Simplify right side
   2,653.88x = 5,882,149.69
5. Step 5: Solve for x
   x = 5,882,149.69/2,653.88
6. Step 6: Final answer
   x = 2,216.43