Finding the Fourth Proportional to 1,380.24, 2,067.12 and 892.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,380.24 : 2,067.12 = 892.62 : x
2. Step 2: Convert to fraction form
   1,380.24/2,067.12 = 892.62/x
3. Step 3: Cross multiply
   1,380.24x = 2,067.12 × 892.62
4. Step 4: Simplify right side
   1,380.24x = 1,845,152.65
5. Step 5: Solve for x
   x = 1,845,152.65/1,380.24
6. Step 6: Final answer
   x = 1,336.83