Finding the Fourth Proportional to 2,776.53, 3,811.56 and 2,382.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,776.53 : 3,811.56 = 2,382.87 : x
2. Step 2: Convert to fraction form
   2,776.53/3,811.56 = 2,382.87/x
3. Step 3: Cross multiply
   2,776.53x = 3,811.56 × 2,382.87
4. Step 4: Simplify right side
   2,776.53x = 9,082,451.98
5. Step 5: Solve for x
   x = 9,082,451.98/2,776.53
6. Step 6: Final answer
   x = 3,271.15