Finding the Fourth Proportional to 2,580.35, 3,560.90 and 1,401.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580.35 : 3,560.90 = 1,401.44 : x
2. Step 2: Convert to fraction form
   2,580.35/3,560.90 = 1,401.44/x
3. Step 3: Cross multiply
   2,580.35x = 3,560.90 × 1,401.44
4. Step 4: Simplify right side
   2,580.35x = 4,990,362.88
5. Step 5: Solve for x
   x = 4,990,362.88/2,580.35
6. Step 6: Final answer
   x = 1,933.99