Finding the Fourth Proportional to 2,776.69, 3,828.96 and 2,379.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,776.69 : 3,828.96 = 2,379.73 : x
2. Step 2: Convert to fraction form
   2,776.69/3,828.96 = 2,379.73/x
3. Step 3: Cross multiply
   2,776.69x = 3,828.96 × 2,379.73
4. Step 4: Simplify right side
   2,776.69x = 9,111,885.24
5. Step 5: Solve for x
   x = 9,111,885.24/2,776.69
6. Step 6: Final answer
   x = 3,281.56