Finding the Fourth Proportional to 2,054.42, 3,082.54 and 1,080.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.42 : 3,082.54 = 1,080.30 : x
2. Step 2: Convert to fraction form
   2,054.42/3,082.54 = 1,080.30/x
3. Step 3: Cross multiply
   2,054.42x = 3,082.54 × 1,080.30
4. Step 4: Simplify right side
   2,054.42x = 3,330,067.96
5. Step 5: Solve for x
   x = 3,330,067.96/2,054.42
6. Step 6: Final answer
   x = 1,620.93