Finding the Fourth Proportional to 3,785.58, 5,671.89 and 2,055.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,785.58 : 5,671.89 = 2,055.42 : x
2. Step 2: Convert to fraction form
   3,785.58/5,671.89 = 2,055.42/x
3. Step 3: Cross multiply
   3,785.58x = 5,671.89 × 2,055.42
4. Step 4: Simplify right side
   3,785.58x = 11,658,116.14
5. Step 5: Solve for x
   x = 11,658,116.14/3,785.58
6. Step 6: Final answer
   x = 3,079.61