Finding the Fourth Proportional to 3,689.82, 5,526.36 and 2,227.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,689.82 : 5,526.36 = 2,227.50 : x
2. Step 2: Convert to fraction form
   3,689.82/5,526.36 = 2,227.50/x
3. Step 3: Cross multiply
   3,689.82x = 5,526.36 × 2,227.50
4. Step 4: Simplify right side
   3,689.82x = 12,309,966.90
5. Step 5: Solve for x
   x = 12,309,966.90/3,689.82
6. Step 6: Final answer
   x = 3,336.20