Finding the Fourth Proportional to 3,401.36, 5,097.98 and 1,320.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,401.36 : 5,097.98 = 1,320.27 : x
2. Step 2: Convert to fraction form
   3,401.36/5,097.98 = 1,320.27/x
3. Step 3: Cross multiply
   3,401.36x = 5,097.98 × 1,320.27
4. Step 4: Simplify right side
   3,401.36x = 6,730,703.45
5. Step 5: Solve for x
   x = 6,730,703.45/3,401.36
6. Step 6: Final answer
   x = 1,978.83