Finding the Fourth Proportional to 2,054.16, 3,081.78 and 1,080

Step by Step Solution

1. Step 1: Write the proportion equation
   2,054.16 : 3,081.78 = 1,080 : x
2. Step 2: Convert to fraction form
   2,054.16/3,081.78 = 1,080/x
3. Step 3: Cross multiply
   2,054.16x = 3,081.78 × 1,080
4. Step 4: Simplify right side
   2,054.16x = 3,328,322.40
5. Step 5: Solve for x
   x = 3,328,322.40/2,054.16
6. Step 6: Final answer
   x = 1,620.28