Finding the Fourth Proportional to 2,849.56, 3,928.78 and 2,423.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,849.56 : 3,928.78 = 2,423.76 : x
2. Step 2: Convert to fraction form
   2,849.56/3,928.78 = 2,423.76/x
3. Step 3: Cross multiply
   2,849.56x = 3,928.78 × 2,423.76
4. Step 4: Simplify right side
   2,849.56x = 9,522,419.81
5. Step 5: Solve for x
   x = 9,522,419.81/2,849.56
6. Step 6: Final answer
   x = 3,341.72