Finding the Fourth Proportional to 2,401.28, 3,313.98 and 1,353.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,401.28 : 3,313.98 = 1,353.55 : x
2. Step 2: Convert to fraction form
   2,401.28/3,313.98 = 1,353.55/x
3. Step 3: Cross multiply
   2,401.28x = 3,313.98 × 1,353.55
4. Step 4: Simplify right side
   2,401.28x = 4,485,614.29
5. Step 5: Solve for x
   x = 4,485,614.29/2,401.28
6. Step 6: Final answer
   x = 1,868.01