Finding the Fourth Proportional to 2,499.39, 3,748.68 and 768.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.39 : 3,748.68 = 768.02 : x
2. Step 2: Convert to fraction form
   2,499.39/3,748.68 = 768.02/x
3. Step 3: Cross multiply
   2,499.39x = 3,748.68 × 768.02
4. Step 4: Simplify right side
   2,499.39x = 2,879,042.47
5. Step 5: Solve for x
   x = 2,879,042.47/2,499.39
6. Step 6: Final answer
   x = 1,151.90