Finding the Fourth Proportional to 2,055.47, 3,083.51 and 1,081.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,055.47 : 3,083.51 = 1,081.65 : x
2. Step 2: Convert to fraction form
   2,055.47/3,083.51 = 1,081.65/x
3. Step 3: Cross multiply
   2,055.47x = 3,083.51 × 1,081.65
4. Step 4: Simplify right side
   2,055.47x = 3,335,278.59
5. Step 5: Solve for x
   x = 3,335,278.59/2,055.47
6. Step 6: Final answer
   x = 1,622.64