Finding the Fourth Proportional to 2,454.89, 3,387.71 and 1,616.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,454.89 : 3,387.71 = 1,616.81 : x
2. Step 2: Convert to fraction form
   2,454.89/3,387.71 = 1,616.81/x
3. Step 3: Cross multiply
   2,454.89x = 3,387.71 × 1,616.81
4. Step 4: Simplify right side
   2,454.89x = 5,477,270.51
5. Step 5: Solve for x
   x = 5,477,270.51/2,454.89
6. Step 6: Final answer
   x = 2,231.17