Finding the Fourth Proportional to 1,065.34, 1,469.10 and 917.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,065.34 : 1,469.10 = 917.92 : x
2. Step 2: Convert to fraction form
   1,065.34/1,469.10 = 917.92/x
3. Step 3: Cross multiply
   1,065.34x = 1,469.10 × 917.92
4. Step 4: Simplify right side
   1,065.34x = 1,348,516.27
5. Step 5: Solve for x
   x = 1,348,516.27/1,065.34
6. Step 6: Final answer
   x = 1,265.81