Finding the Fourth Proportional to 2,499.42, 3,749.04 and 768

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.42 : 3,749.04 = 768 : x
2. Step 2: Convert to fraction form
   2,499.42/3,749.04 = 768/x
3. Step 3: Cross multiply
   2,499.42x = 3,749.04 × 768
4. Step 4: Simplify right side
   2,499.42x = 2,879,262.72
5. Step 5: Solve for x
   x = 2,879,262.72/2,499.42
6. Step 6: Final answer
   x = 1,151.97