Finding the Fourth Proportional to 2,055.63, 3,081.29 and 1,081.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,055.63 : 3,081.29 = 1,081.47 : x
2. Step 2: Convert to fraction form
   2,055.63/3,081.29 = 1,081.47/x
3. Step 3: Cross multiply
   2,055.63x = 3,081.29 × 1,081.47
4. Step 4: Simplify right side
   2,055.63x = 3,332,317.29
5. Step 5: Solve for x
   x = 3,332,317.29/2,055.63
6. Step 6: Final answer
   x = 1,621.07