Finding the Fourth Proportional to 1,356.32, 2,033.60 and 892.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.32 : 2,033.60 = 892.69 : x
2. Step 2: Convert to fraction form
   1,356.32/2,033.60 = 892.69/x
3. Step 3: Cross multiply
   1,356.32x = 2,033.60 × 892.69
4. Step 4: Simplify right side
   1,356.32x = 1,815,369.92
5. Step 5: Solve for x
   x = 1,815,369.92/1,356.32
6. Step 6: Final answer
   x = 1,338.46