Finding the Fourth Proportional to 3,967.49, 5,474.00 and 2,288.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,967.49 : 5,474.00 = 2,288.76 : x
2. Step 2: Convert to fraction form
   3,967.49/5,474.00 = 2,288.76/x
3. Step 3: Cross multiply
   3,967.49x = 5,474.00 × 2,288.76
4. Step 4: Simplify right side
   3,967.49x = 12,528,660.80
5. Step 5: Solve for x
   x = 12,528,660.80/3,967.49
6. Step 6: Final answer
   x = 3,157.83