Finding the Fourth Proportional to 2,580.58, 3,561.09 and 1,401.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580.58 : 3,561.09 = 1,401.62 : x
2. Step 2: Convert to fraction form
   2,580.58/3,561.09 = 1,401.62/x
3. Step 3: Cross multiply
   2,580.58x = 3,561.09 × 1,401.62
4. Step 4: Simplify right side
   2,580.58x = 4,991,298.61
5. Step 5: Solve for x
   x = 4,991,298.61/2,580.58
6. Step 6: Final answer
   x = 1,934.18