Finding the Fourth Proportional to 1,282.72, 1,769.82 and 758.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,282.72 : 1,769.82 = 758.92 : x
2. Step 2: Convert to fraction form
   1,282.72/1,769.82 = 758.92/x
3. Step 3: Cross multiply
   1,282.72x = 1,769.82 × 758.92
4. Step 4: Simplify right side
   1,282.72x = 1,343,151.79
5. Step 5: Solve for x
   x = 1,343,151.79/1,282.72
6. Step 6: Final answer
   x = 1,047.11