Finding the Fourth Proportional to 2,111.49, 2,914.11 and 1,272.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.49 : 2,914.11 = 1,272.33 : x
2. Step 2: Convert to fraction form
   2,111.49/2,914.11 = 1,272.33/x
3. Step 3: Cross multiply
   2,111.49x = 2,914.11 × 1,272.33
4. Step 4: Simplify right side
   2,111.49x = 3,707,709.58
5. Step 5: Solve for x
   x = 3,707,709.58/2,111.49
6. Step 6: Final answer
   x = 1,755.97