Finding the Fourth Proportional to 1,392.03, 1,921.10 and 894.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,392.03 : 1,921.10 = 894.83 : x
2. Step 2: Convert to fraction form
   1,392.03/1,921.10 = 894.83/x
3. Step 3: Cross multiply
   1,392.03x = 1,921.10 × 894.83
4. Step 4: Simplify right side
   1,392.03x = 1,719,043.83
5. Step 5: Solve for x
   x = 1,719,043.83/1,392.03
6. Step 6: Final answer
   x = 1,234.92