Finding the Fourth Proportional to 2,271.24, 3,134.27 and 1,387.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.24 : 3,134.27 = 1,387.04 : x
2. Step 2: Convert to fraction form
   2,271.24/3,134.27 = 1,387.04/x
3. Step 3: Cross multiply
   2,271.24x = 3,134.27 × 1,387.04
4. Step 4: Simplify right side
   2,271.24x = 4,347,335.25
5. Step 5: Solve for x
   x = 4,347,335.25/2,271.24
6. Step 6: Final answer
   x = 1,914.08