Finding the Fourth Proportional to 2,361.69, 3,257.78 and 1,615.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,361.69 : 3,257.78 = 1,615.23 : x
2. Step 2: Convert to fraction form
   2,361.69/3,257.78 = 1,615.23/x
3. Step 3: Cross multiply
   2,361.69x = 3,257.78 × 1,615.23
4. Step 4: Simplify right side
   2,361.69x = 5,262,055.91
5. Step 5: Solve for x
   x = 5,262,055.91/2,361.69
6. Step 6: Final answer
   x = 2,228.09