Finding the Fourth Proportional to 3,808.72, 5,708.47 and 3,347.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,808.72 : 5,708.47 = 3,347.40 : x
2. Step 2: Convert to fraction form
   3,808.72/5,708.47 = 3,347.40/x
3. Step 3: Cross multiply
   3,808.72x = 5,708.47 × 3,347.40
4. Step 4: Simplify right side
   3,808.72x = 19,108,541.09
5. Step 5: Solve for x
   x = 19,108,541.09/3,808.72
6. Step 6: Final answer
   x = 5,017.05