Finding the Fourth Proportional to 2,576.41, 3,878.58 and 2,308.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,576.41 : 3,878.58 = 2,308.50 : x
2. Step 2: Convert to fraction form
   2,576.41/3,878.58 = 2,308.50/x
3. Step 3: Cross multiply
   2,576.41x = 3,878.58 × 2,308.50
4. Step 4: Simplify right side
   2,576.41x = 8,953,710.59
5. Step 5: Solve for x
   x = 8,953,710.59/2,576.41
6. Step 6: Final answer
   x = 3,475.27