Finding the Fourth Proportional to 1,639.56, 2,441.06 and 1,616.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,639.56 : 2,441.06 = 1,616.58 : x
2. Step 2: Convert to fraction form
   1,639.56/2,441.06 = 1,616.58/x
3. Step 3: Cross multiply
   1,639.56x = 2,441.06 × 1,616.58
4. Step 4: Simplify right side
   1,639.56x = 3,946,160.69
5. Step 5: Solve for x
   x = 3,946,160.69/1,639.56
6. Step 6: Final answer
   x = 2,406.84