Finding the Fourth Proportional to 4,141.50, 6,212.31 and 1,643.31

Step by Step Solution

1. Step 1: Write the proportion equation
   4,141.50 : 6,212.31 = 1,643.31 : x
2. Step 2: Convert to fraction form
   4,141.50/6,212.31 = 1,643.31/x
3. Step 3: Cross multiply
   4,141.50x = 6,212.31 × 1,643.31
4. Step 4: Simplify right side
   4,141.50x = 10,208,751.15
5. Step 5: Solve for x
   x = 10,208,751.15/4,141.50
6. Step 6: Final answer
   x = 2,464.99