Finding the Fourth Proportional to 3,680.56, 5,081.70 and 2,355.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,680.56 : 5,081.70 = 2,355.94 : x
2. Step 2: Convert to fraction form
   3,680.56/5,081.70 = 2,355.94/x
3. Step 3: Cross multiply
   3,680.56x = 5,081.70 × 2,355.94
4. Step 4: Simplify right side
   3,680.56x = 11,972,180.30
5. Step 5: Solve for x
   x = 11,972,180.30/3,680.56
6. Step 6: Final answer
   x = 3,252.81