Finding the Fourth Proportional to 2,109.23, 2,910.63 and 1,270.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.23 : 2,910.63 = 1,270.27 : x
2. Step 2: Convert to fraction form
   2,109.23/2,910.63 = 1,270.27/x
3. Step 3: Cross multiply
   2,109.23x = 2,910.63 × 1,270.27
4. Step 4: Simplify right side
   2,109.23x = 3,697,285.97
5. Step 5: Solve for x
   x = 3,697,285.97/2,109.23
6. Step 6: Final answer
   x = 1,752.91