Finding the Fourth Proportional to 2,581.91, 3,563.61 and 1,697.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,581.91 : 3,563.61 = 1,697.80 : x
2. Step 2: Convert to fraction form
   2,581.91/3,563.61 = 1,697.80/x
3. Step 3: Cross multiply
   2,581.91x = 3,563.61 × 1,697.80
4. Step 4: Simplify right side
   2,581.91x = 6,050,288.15
5. Step 5: Solve for x
   x = 6,050,288.15/2,581.91
6. Step 6: Final answer
   x = 2,343.34