Finding the Fourth Proportional to 2,499.16, 3,748.76 and 767.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.16 : 3,748.76 = 767.56 : x
2. Step 2: Convert to fraction form
   2,499.16/3,748.76 = 767.56/x
3. Step 3: Cross multiply
   2,499.16x = 3,748.76 × 767.56
4. Step 4: Simplify right side
   2,499.16x = 2,877,398.23
5. Step 5: Solve for x
   x = 2,877,398.23/2,499.16
6. Step 6: Final answer
   x = 1,151.35