Finding the Fourth Proportional to 2,456.81, 3,391.50 and 1,617.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.81 : 3,391.50 = 1,617.95 : x
2. Step 2: Convert to fraction form
   2,456.81/3,391.50 = 1,617.95/x
3. Step 3: Cross multiply
   2,456.81x = 3,391.50 × 1,617.95
4. Step 4: Simplify right side
   2,456.81x = 5,487,277.43
5. Step 5: Solve for x
   x = 5,487,277.43/2,456.81
6. Step 6: Final answer
   x = 2,233.50