Finding the Fourth Proportional to 3,900.50, 5,382.69 and 2,245.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,900.50 : 5,382.69 = 2,245.46 : x
2. Step 2: Convert to fraction form
   3,900.50/5,382.69 = 2,245.46/x
3. Step 3: Cross multiply
   3,900.50x = 5,382.69 × 2,245.46
4. Step 4: Simplify right side
   3,900.50x = 12,086,615.09
5. Step 5: Solve for x
   x = 12,086,615.09/3,900.50
6. Step 6: Final answer
   x = 3,098.73