Finding the Fourth Proportional to 1,065.96, 1,469.61 and 817.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065.96 : 1,469.61 = 817.02 : x
2. Step 2: Convert to fraction form
   1,065.96/1,469.61 = 817.02/x
3. Step 3: Cross multiply
   1,065.96x = 1,469.61 × 817.02
4. Step 4: Simplify right side
   1,065.96x = 1,200,700.76
5. Step 5: Solve for x
   x = 1,200,700.76/1,065.96
6. Step 6: Final answer
   x = 1,126.40