Finding the Fourth Proportional to 2,380.48, 3,571.89 and 1,081.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.48 : 3,571.89 = 1,081.60 : x
2. Step 2: Convert to fraction form
   2,380.48/3,571.89 = 1,081.60/x
3. Step 3: Cross multiply
   2,380.48x = 3,571.89 × 1,081.60
4. Step 4: Simplify right side
   2,380.48x = 3,863,356.22
5. Step 5: Solve for x
   x = 3,863,356.22/2,380.48
6. Step 6: Final answer
   x = 1,622.93