Finding the Fourth Proportional to 3,808.47, 5,700.86 and 3,485.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,808.47 : 5,700.86 = 3,485.49 : x
2. Step 2: Convert to fraction form
   3,808.47/5,700.86 = 3,485.49/x
3. Step 3: Cross multiply
   3,808.47x = 5,700.86 × 3,485.49
4. Step 4: Simplify right side
   3,808.47x = 19,870,290.52
5. Step 5: Solve for x
   x = 19,870,290.52/3,808.47
6. Step 6: Final answer
   x = 5,217.39