Finding the Fourth Proportional to 2,267.91, 3,128.82 and 1,382.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,267.91 : 3,128.82 = 1,382.18 : x
2. Step 2: Convert to fraction form
   2,267.91/3,128.82 = 1,382.18/x
3. Step 3: Cross multiply
   2,267.91x = 3,128.82 × 1,382.18
4. Step 4: Simplify right side
   2,267.91x = 4,324,592.43
5. Step 5: Solve for x
   x = 4,324,592.43/2,267.91
6. Step 6: Final answer
   x = 1,906.86