Finding the Fourth Proportional to 2,267.29, 3,128.89 and 1,370.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,267.29 : 3,128.89 = 1,370.91 : x
2. Step 2: Convert to fraction form
   2,267.29/3,128.89 = 1,370.91/x
3. Step 3: Cross multiply
   2,267.29x = 3,128.89 × 1,370.91
4. Step 4: Simplify right side
   2,267.29x = 4,289,426.59
5. Step 5: Solve for x
   x = 4,289,426.59/2,267.29
6. Step 6: Final answer
   x = 1,891.87