Finding the Fourth Proportional to 3,185.02, 4,771.31 and 2,086.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,185.02 : 4,771.31 = 2,086.05 : x
2. Step 2: Convert to fraction form
   3,185.02/4,771.31 = 2,086.05/x
3. Step 3: Cross multiply
   3,185.02x = 4,771.31 × 2,086.05
4. Step 4: Simplify right side
   3,185.02x = 9,953,196.44
5. Step 5: Solve for x
   x = 9,953,196.44/3,185.02
6. Step 6: Final answer
   x = 3,125.01