Finding the Fourth Proportional to 3,468.72, 4,788.72 and 2,291.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,468.72 : 4,788.72 = 2,291.76 : x
2. Step 2: Convert to fraction form
   3,468.72/4,788.72 = 2,291.76/x
3. Step 3: Cross multiply
   3,468.72x = 4,788.72 × 2,291.76
4. Step 4: Simplify right side
   3,468.72x = 10,974,596.95
5. Step 5: Solve for x
   x = 10,974,596.95/3,468.72
6. Step 6: Final answer
   x = 3,163.88