Finding the Fourth Proportional to 2,499.27, 3,749.00 and 767.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.27 : 3,749.00 = 767.90 : x
2. Step 2: Convert to fraction form
   2,499.27/3,749.00 = 767.90/x
3. Step 3: Cross multiply
   2,499.27x = 3,749.00 × 767.90
4. Step 4: Simplify right side
   2,499.27x = 2,878,834.52
5. Step 5: Solve for x
   x = 2,878,834.52/2,499.27
6. Step 6: Final answer
   x = 1,151.87