Finding the Fourth Proportional to 1,392.48, 1,920.84 and 895.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,392.48 : 1,920.84 = 895.18 : x
2. Step 2: Convert to fraction form
   1,392.48/1,920.84 = 895.18/x
3. Step 3: Cross multiply
   1,392.48x = 1,920.84 × 895.18
4. Step 4: Simplify right side
   1,392.48x = 1,719,497.55
5. Step 5: Solve for x
   x = 1,719,497.55/1,392.48
6. Step 6: Final answer
   x = 1,234.85