Finding the Fourth Proportional to 2,760.69, 3,814.50 and 2,428.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,760.69 : 3,814.50 = 2,428.55 : x
2. Step 2: Convert to fraction form
   2,760.69/3,814.50 = 2,428.55/x
3. Step 3: Cross multiply
   2,760.69x = 3,814.50 × 2,428.55
4. Step 4: Simplify right side
   2,760.69x = 9,263,684.90
5. Step 5: Solve for x
   x = 9,263,684.90/2,760.69
6. Step 6: Final answer
   x = 3,355.57