Finding the Fourth Proportional to 2,111.94, 2,914.52 and 1,272.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.94 : 2,914.52 = 1,272.65 : x
2. Step 2: Convert to fraction form
   2,111.94/2,914.52 = 1,272.65/x
3. Step 3: Cross multiply
   2,111.94x = 2,914.52 × 1,272.65
4. Step 4: Simplify right side
   2,111.94x = 3,709,142.94
5. Step 5: Solve for x
   x = 3,709,142.94/2,111.94
6. Step 6: Final answer
   x = 1,756.27