Finding the Fourth Proportional to 2,081.11, 3,118.77 and 1,616.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,081.11 : 3,118.77 = 1,616.77 : x
2. Step 2: Convert to fraction form
   2,081.11/3,118.77 = 1,616.77/x
3. Step 3: Cross multiply
   2,081.11x = 3,118.77 × 1,616.77
4. Step 4: Simplify right side
   2,081.11x = 5,042,333.77
5. Step 5: Solve for x
   x = 5,042,333.77/2,081.11
6. Step 6: Final answer
   x = 2,422.91