Finding the Fourth Proportional to 2,109.58, 2,910.94 and 1,270.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.58 : 2,910.94 = 1,270.62 : x
2. Step 2: Convert to fraction form
   2,109.58/2,910.94 = 1,270.62/x
3. Step 3: Cross multiply
   2,109.58x = 2,910.94 × 1,270.62
4. Step 4: Simplify right side
   2,109.58x = 3,698,695.41
5. Step 5: Solve for x
   x = 3,698,695.41/2,109.58
6. Step 6: Final answer
   x = 1,753.29