Finding the Fourth Proportional to 2,109.98, 2,912.27 and 1,270.26

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.98 : 2,912.27 = 1,270.26 : x
2. Step 2: Convert to fraction form
   2,109.98/2,912.27 = 1,270.26/x
3. Step 3: Cross multiply
   2,109.98x = 2,912.27 × 1,270.26
4. Step 4: Simplify right side
   2,109.98x = 3,699,333.74
5. Step 5: Solve for x
   x = 3,699,333.74/2,109.98
6. Step 6: Final answer
   x = 1,753.25