Finding the Fourth Proportional to 4,128.89, 5,697.81 and 2,240.46

Step by Step Solution

1. Step 1: Write the proportion equation
   4,128.89 : 5,697.81 = 2,240.46 : x
2. Step 2: Convert to fraction form
   4,128.89/5,697.81 = 2,240.46/x
3. Step 3: Cross multiply
   4,128.89x = 5,697.81 × 2,240.46
4. Step 4: Simplify right side
   4,128.89x = 12,765,715.39
5. Step 5: Solve for x
   x = 12,765,715.39/4,128.89
6. Step 6: Final answer
   x = 3,091.81