Finding the Fourth Proportional to 2,114.16, 3,171.12 and 1,253.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,114.16 : 3,171.12 = 1,253.94 : x
2. Step 2: Convert to fraction form
   2,114.16/3,171.12 = 1,253.94/x
3. Step 3: Cross multiply
   2,114.16x = 3,171.12 × 1,253.94
4. Step 4: Simplify right side
   2,114.16x = 3,976,394.21
5. Step 5: Solve for x
   x = 3,976,394.21/2,114.16
6. Step 6: Final answer
   x = 1,880.84