Finding the Fourth Proportional to 2,192.18, 3,286.59 and 892.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,192.18 : 3,286.59 = 892.82 : x
2. Step 2: Convert to fraction form
   2,192.18/3,286.59 = 892.82/x
3. Step 3: Cross multiply
   2,192.18x = 3,286.59 × 892.82
4. Step 4: Simplify right side
   2,192.18x = 2,934,333.28
5. Step 5: Solve for x
   x = 2,934,333.28/2,192.18
6. Step 6: Final answer
   x = 1,338.55