Finding the Fourth Proportional to 2,580.27, 3,560.81 and 1,401.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580.27 : 3,560.81 = 1,401.36 : x
2. Step 2: Convert to fraction form
   2,580.27/3,560.81 = 1,401.36/x
3. Step 3: Cross multiply
   2,580.27x = 3,560.81 × 1,401.36
4. Step 4: Simplify right side
   2,580.27x = 4,989,969.69
5. Step 5: Solve for x
   x = 4,989,969.69/2,580.27
6. Step 6: Final answer
   x = 1,933.89