Finding the Fourth Proportional to 3,904.56, 5,858.40 and 2,055.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,904.56 : 5,858.40 = 2,055.18 : x
2. Step 2: Convert to fraction form
   3,904.56/5,858.40 = 2,055.18/x
3. Step 3: Cross multiply
   3,904.56x = 5,858.40 × 2,055.18
4. Step 4: Simplify right side
   3,904.56x = 12,040,066.51
5. Step 5: Solve for x
   x = 12,040,066.51/3,904.56
6. Step 6: Final answer
   x = 3,083.59