Finding the Fourth Proportional to 1,499.52, 2,247.36 and 769.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.52 : 2,247.36 = 769.28 : x
2. Step 2: Convert to fraction form
   1,499.52/2,247.36 = 769.28/x
3. Step 3: Cross multiply
   1,499.52x = 2,247.36 × 769.28
4. Step 4: Simplify right side
   1,499.52x = 1,728,849.10
5. Step 5: Solve for x
   x = 1,728,849.10/1,499.52
6. Step 6: Final answer
   x = 1,152.94