Finding the Fourth Proportional to 3,885.30, 5,350.05 and 3,185.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,885.30 : 5,350.05 = 3,185.46 : x
2. Step 2: Convert to fraction form
   3,885.30/5,350.05 = 3,185.46/x
3. Step 3: Cross multiply
   3,885.30x = 5,350.05 × 3,185.46
4. Step 4: Simplify right side
   3,885.30x = 17,042,370.27
5. Step 5: Solve for x
   x = 17,042,370.27/3,885.30
6. Step 6: Final answer
   x = 4,386.37