Finding the Fourth Proportional to 1,061.85, 1,462.28 and 865.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.85 : 1,462.28 = 865.83 : x
2. Step 2: Convert to fraction form
   1,061.85/1,462.28 = 865.83/x
3. Step 3: Cross multiply
   1,061.85x = 1,462.28 × 865.83
4. Step 4: Simplify right side
   1,061.85x = 1,266,081.56
5. Step 5: Solve for x
   x = 1,266,081.56/1,061.85
6. Step 6: Final answer
   x = 1,192.34