Finding the Fourth Proportional to 1,062.15, 1,467.17 and 885.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,062.15 : 1,467.17 = 885.69 : x
2. Step 2: Convert to fraction form
   1,062.15/1,467.17 = 885.69/x
3. Step 3: Cross multiply
   1,062.15x = 1,467.17 × 885.69
4. Step 4: Simplify right side
   1,062.15x = 1,299,453.94
5. Step 5: Solve for x
   x = 1,299,453.94/1,062.15
6. Step 6: Final answer
   x = 1,223.42