Finding the Fourth Proportional to 3,865.50, 5,333.46 and 2,292.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,865.50 : 5,333.46 = 2,292.72 : x
2. Step 2: Convert to fraction form
   3,865.50/5,333.46 = 2,292.72/x
3. Step 3: Cross multiply
   3,865.50x = 5,333.46 × 2,292.72
4. Step 4: Simplify right side
   3,865.50x = 12,228,130.41
5. Step 5: Solve for x
   x = 12,228,130.41/3,865.50
6. Step 6: Final answer
   x = 3,163.40