Finding the Fourth Proportional to 4,667.31, 6,440.88 and 2,571.42

Step by Step Solution

1. Step 1: Write the proportion equation
   4,667.31 : 6,440.88 = 2,571.42 : x
2. Step 2: Convert to fraction form
   4,667.31/6,440.88 = 2,571.42/x
3. Step 3: Cross multiply
   4,667.31x = 6,440.88 × 2,571.42
4. Step 4: Simplify right side
   4,667.31x = 16,562,207.65
5. Step 5: Solve for x
   x = 16,562,207.65/4,667.31
6. Step 6: Final answer
   x = 3,548.56