Finding the Fourth Proportional to 1,016.39, 1,527.28 and 950.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.39 : 1,527.28 = 950.78 : x
2. Step 2: Convert to fraction form
   1,016.39/1,527.28 = 950.78/x
3. Step 3: Cross multiply
   1,016.39x = 1,527.28 × 950.78
4. Step 4: Simplify right side
   1,016.39x = 1,452,097.27
5. Step 5: Solve for x
   x = 1,452,097.27/1,016.39
6. Step 6: Final answer
   x = 1,428.69