Finding the Fourth Proportional to 1,499.82, 2,248.34 and 767.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.82 : 2,248.34 = 767.78 : x
2. Step 2: Convert to fraction form
   1,499.82/2,248.34 = 767.78/x
3. Step 3: Cross multiply
   1,499.82x = 2,248.34 × 767.78
4. Step 4: Simplify right side
   1,499.82x = 1,726,230.49
5. Step 5: Solve for x
   x = 1,726,230.49/1,499.82
6. Step 6: Final answer
   x = 1,150.96