Finding the Fourth Proportional to 3,546.43, 5,320.42 and 1,081.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,546.43 : 5,320.42 = 1,081.19 : x
2. Step 2: Convert to fraction form
   3,546.43/5,320.42 = 1,081.19/x
3. Step 3: Cross multiply
   3,546.43x = 5,320.42 × 1,081.19
4. Step 4: Simplify right side
   3,546.43x = 5,752,352.89
5. Step 5: Solve for x
   x = 5,752,352.89/3,546.43
6. Step 6: Final answer
   x = 1,622.01