Finding the Fourth Proportional to 2,191.32, 3,287.25 and 892.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.32 : 3,287.25 = 892.62 : x
2. Step 2: Convert to fraction form
   2,191.32/3,287.25 = 892.62/x
3. Step 3: Cross multiply
   2,191.32x = 3,287.25 × 892.62
4. Step 4: Simplify right side
   2,191.32x = 2,934,265.10
5. Step 5: Solve for x
   x = 2,934,265.10/2,191.32
6. Step 6: Final answer
   x = 1,339.04