Finding the Fourth Proportional to 2,580.92, 3,561.67 and 1,401.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580.92 : 3,561.67 = 1,401.99 : x
2. Step 2: Convert to fraction form
   2,580.92/3,561.67 = 1,401.99/x
3. Step 3: Cross multiply
   2,580.92x = 3,561.67 × 1,401.99
4. Step 4: Simplify right side
   2,580.92x = 4,993,425.72
5. Step 5: Solve for x
   x = 4,993,425.72/2,580.92
6. Step 6: Final answer
   x = 1,934.75