Finding the Fourth Proportional to 2,580.86, 3,561.59 and 1,401.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580.86 : 3,561.59 = 1,401.96 : x
2. Step 2: Convert to fraction form
   2,580.86/3,561.59 = 1,401.96/x
3. Step 3: Cross multiply
   2,580.86x = 3,561.59 × 1,401.96
4. Step 4: Simplify right side
   2,580.86x = 4,993,181.90
5. Step 5: Solve for x
   x = 4,993,181.90/2,580.86
6. Step 6: Final answer
   x = 1,934.70