Finding the Fourth Proportional to 2,456.26, 3,389.61 and 1,618.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.26 : 3,389.61 = 1,618.18 : x
2. Step 2: Convert to fraction form
   2,456.26/3,389.61 = 1,618.18/x
3. Step 3: Cross multiply
   2,456.26x = 3,389.61 × 1,618.18
4. Step 4: Simplify right side
   2,456.26x = 5,484,999.11
5. Step 5: Solve for x
   x = 5,484,999.11/2,456.26
6. Step 6: Final answer
   x = 2,233.07