Finding the Fourth Proportional to 3,931.10, 5,902.57 and 3,804.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,931.10 : 5,902.57 = 3,804.89 : x
2. Step 2: Convert to fraction form
   3,931.10/5,902.57 = 3,804.89/x
3. Step 3: Cross multiply
   3,931.10x = 5,902.57 × 3,804.89
4. Step 4: Simplify right side
   3,931.10x = 22,458,629.57
5. Step 5: Solve for x
   x = 22,458,629.57/3,931.10
6. Step 6: Final answer
   x = 5,713.06