Finding the Fourth Proportional to 1,423.72, 1,965.70 and 892.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423.72 : 1,965.70 = 892.82 : x
2. Step 2: Convert to fraction form
   1,423.72/1,965.70 = 892.82/x
3. Step 3: Cross multiply
   1,423.72x = 1,965.70 × 892.82
4. Step 4: Simplify right side
   1,423.72x = 1,755,016.27
5. Step 5: Solve for x
   x = 1,755,016.27/1,423.72
6. Step 6: Final answer
   x = 1,232.70