Finding the Fourth Proportional to 2,504.72, 3,760.72 and 1,778.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,504.72 : 3,760.72 = 1,778.16 : x
2. Step 2: Convert to fraction form
   2,504.72/3,760.72 = 1,778.16/x
3. Step 3: Cross multiply
   2,504.72x = 3,760.72 × 1,778.16
4. Step 4: Simplify right side
   2,504.72x = 6,687,161.88
5. Step 5: Solve for x
   x = 6,687,161.88/2,504.72
6. Step 6: Final answer
   x = 2,669.82