Finding the Fourth Proportional to 1,499.85, 2,248.16 and 768.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,499.85 : 2,248.16 = 768.42 : x
2. Step 2: Convert to fraction form
   1,499.85/2,248.16 = 768.42/x
3. Step 3: Cross multiply
   1,499.85x = 2,248.16 × 768.42
4. Step 4: Simplify right side
   1,499.85x = 1,727,527.27
5. Step 5: Solve for x
   x = 1,727,527.27/1,499.85
6. Step 6: Final answer
   x = 1,151.80