Finding the Fourth Proportional to 2,697.59, 3,723.17 and 1,578.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,697.59 : 3,723.17 = 1,578.46 : x
2. Step 2: Convert to fraction form
   2,697.59/3,723.17 = 1,578.46/x
3. Step 3: Cross multiply
   2,697.59x = 3,723.17 × 1,578.46
4. Step 4: Simplify right side
   2,697.59x = 5,876,874.92
5. Step 5: Solve for x
   x = 5,876,874.92/2,697.59
6. Step 6: Final answer
   x = 2,178.56