Finding the Fourth Proportional to 4,158.50, 6,238.71 and 1,422.50

Step by Step Solution

1. Step 1: Write the proportion equation
   4,158.50 : 6,238.71 = 1,422.50 : x
2. Step 2: Convert to fraction form
   4,158.50/6,238.71 = 1,422.50/x
3. Step 3: Cross multiply
   4,158.50x = 6,238.71 × 1,422.50
4. Step 4: Simplify right side
   4,158.50x = 8,874,564.98
5. Step 5: Solve for x
   x = 8,874,564.98/4,158.50
6. Step 6: Final answer
   x = 2,134.08