Finding the Fourth Proportional to 2,004.56, 2,998.16 and 1,641.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,004.56 : 2,998.16 = 1,641.68 : x
2. Step 2: Convert to fraction form
   2,004.56/2,998.16 = 1,641.68/x
3. Step 3: Cross multiply
   2,004.56x = 2,998.16 × 1,641.68
4. Step 4: Simplify right side
   2,004.56x = 4,922,019.31
5. Step 5: Solve for x
   x = 4,922,019.31/2,004.56
6. Step 6: Final answer
   x = 2,455.41