Finding the Fourth Proportional to 2,389.78, 3,580.98 and 1,608.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,389.78 : 3,580.98 = 1,608.10 : x
2. Step 2: Convert to fraction form
   2,389.78/3,580.98 = 1,608.10/x
3. Step 3: Cross multiply
   2,389.78x = 3,580.98 × 1,608.10
4. Step 4: Simplify right side
   2,389.78x = 5,758,573.94
5. Step 5: Solve for x
   x = 5,758,573.94/2,389.78
6. Step 6: Final answer
   x = 2,409.67