Finding the Fourth Proportional to 3,546.72, 5,320.95 and 1,081.41

Step by Step Solution

1. Step 1: Write the proportion equation
   3,546.72 : 5,320.95 = 1,081.41 : x
2. Step 2: Convert to fraction form
   3,546.72/5,320.95 = 1,081.41/x
3. Step 3: Cross multiply
   3,546.72x = 5,320.95 × 1,081.41
4. Step 4: Simplify right side
   3,546.72x = 5,754,128.54
5. Step 5: Solve for x
   x = 5,754,128.54/3,546.72
6. Step 6: Final answer
   x = 1,622.38