Finding the Fourth Proportional to 2,054.62, 3,082.20 and 1,080.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.62 : 3,082.20 = 1,080.78 : x
2. Step 2: Convert to fraction form
   2,054.62/3,082.20 = 1,080.78/x
3. Step 3: Cross multiply
   2,054.62x = 3,082.20 × 1,080.78
4. Step 4: Simplify right side
   2,054.62x = 3,331,180.12
5. Step 5: Solve for x
   x = 3,331,180.12/2,054.62
6. Step 6: Final answer
   x = 1,621.31