Finding the Fourth Proportional to 2,758.72, 3,803.88 and 2,259.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.72 : 3,803.88 = 2,259.76 : x
2. Step 2: Convert to fraction form
   2,758.72/3,803.88 = 2,259.76/x
3. Step 3: Cross multiply
   2,758.72x = 3,803.88 × 2,259.76
4. Step 4: Simplify right side
   2,758.72x = 8,595,855.87
5. Step 5: Solve for x
   x = 8,595,855.87/2,758.72
6. Step 6: Final answer
   x = 3,115.89