Finding the Fourth Proportional to 2,096.40, 3,141 and 1,272.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,096.40 : 3,141 = 1,272.72 : x
2. Step 2: Convert to fraction form
   2,096.40/3,141 = 1,272.72/x
3. Step 3: Cross multiply
   2,096.40x = 3,141 × 1,272.72
4. Step 4: Simplify right side
   2,096.40x = 3,997,613.52
5. Step 5: Solve for x
   x = 3,997,613.52/2,096.40
6. Step 6: Final answer
   x = 1,906.89