Finding the Fourth Proportional to 2,007.72, 2,764.50 and 1,757.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007.72 : 2,764.50 = 1,757.64 : x
2. Step 2: Convert to fraction form
   2,007.72/2,764.50 = 1,757.64/x
3. Step 3: Cross multiply
   2,007.72x = 2,764.50 × 1,757.64
4. Step 4: Simplify right side
   2,007.72x = 4,858,995.78
5. Step 5: Solve for x
   x = 4,858,995.78/2,007.72
6. Step 6: Final answer
   x = 2,420.16