Finding the Fourth Proportional to 3,546.32, 5,319.71 and 1,081.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,546.32 : 5,319.71 = 1,081.16 : x
2. Step 2: Convert to fraction form
   3,546.32/5,319.71 = 1,081.16/x
3. Step 3: Cross multiply
   3,546.32x = 5,319.71 × 1,081.16
4. Step 4: Simplify right side
   3,546.32x = 5,751,479.59
5. Step 5: Solve for x
   x = 5,751,479.59/3,546.32
6. Step 6: Final answer
   x = 1,621.82