Finding the Fourth Proportional to 3,238.50, 4,858.34 and 2,143.77

Step by Step Solution

1. Step 1: Write the proportion equation
   3,238.50 : 4,858.34 = 2,143.77 : x
2. Step 2: Convert to fraction form
   3,238.50/4,858.34 = 2,143.77/x
3. Step 3: Cross multiply
   3,238.50x = 4,858.34 × 2,143.77
4. Step 4: Simplify right side
   3,238.50x = 10,415,152.82
5. Step 5: Solve for x
   x = 10,415,152.82/3,238.50
6. Step 6: Final answer
   x = 3,216.04