Finding the Fourth Proportional to 2,580.84, 3,561.56 and 1,401.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,580.84 : 3,561.56 = 1,401.91 : x
2. Step 2: Convert to fraction form
   2,580.84/3,561.56 = 1,401.91/x
3. Step 3: Cross multiply
   2,580.84x = 3,561.56 × 1,401.91
4. Step 4: Simplify right side
   2,580.84x = 4,992,986.58
5. Step 5: Solve for x
   x = 4,992,986.58/2,580.84
6. Step 6: Final answer
   x = 1,934.64