Finding the Fourth Proportional to 3,778.72, 5,215.52 and 2,536

Step by Step Solution

1. Step 1: Write the proportion equation
   3,778.72 : 5,215.52 = 2,536 : x
2. Step 2: Convert to fraction form
   3,778.72/5,215.52 = 2,536/x
3. Step 3: Cross multiply
   3,778.72x = 5,215.52 × 2,536
4. Step 4: Simplify right side
   3,778.72x = 13,226,558.72
5. Step 5: Solve for x
   x = 13,226,558.72/3,778.72
6. Step 6: Final answer
   x = 3,500.27