Finding the Fourth Proportional to 3,893.16, 5,800.39 and 3,707.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,893.16 : 5,800.39 = 3,707.40 : x
2. Step 2: Convert to fraction form
   3,893.16/5,800.39 = 3,707.40/x
3. Step 3: Cross multiply
   3,893.16x = 5,800.39 × 3,707.40
4. Step 4: Simplify right side
   3,893.16x = 21,504,365.89
5. Step 5: Solve for x
   x = 21,504,365.89/3,893.16
6. Step 6: Final answer
   x = 5,523.63