Finding the Fourth Proportional to 1,392.82, 1,921 and 895.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,392.82 : 1,921 = 895.50 : x
2. Step 2: Convert to fraction form
   1,392.82/1,921 = 895.50/x
3. Step 3: Cross multiply
   1,392.82x = 1,921 × 895.50
4. Step 4: Simplify right side
   1,392.82x = 1,720,255.50
5. Step 5: Solve for x
   x = 1,720,255.50/1,392.82
6. Step 6: Final answer
   x = 1,235.09