Finding the Fourth Proportional to 2,507.58, 3,760.14 and 863.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,507.58 : 3,760.14 = 863.69 : x
2. Step 2: Convert to fraction form
   2,507.58/3,760.14 = 863.69/x
3. Step 3: Cross multiply
   2,507.58x = 3,760.14 × 863.69
4. Step 4: Simplify right side
   2,507.58x = 3,247,576.52
5. Step 5: Solve for x
   x = 3,247,576.52/2,507.58
6. Step 6: Final answer
   x = 1,295.10