Finding the Fourth Proportional to 2,090.88, 3,142.08 and 1,271.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090.88 : 3,142.08 = 1,271.52 : x
2. Step 2: Convert to fraction form
   2,090.88/3,142.08 = 1,271.52/x
3. Step 3: Cross multiply
   2,090.88x = 3,142.08 × 1,271.52
4. Step 4: Simplify right side
   2,090.88x = 3,995,217.56
5. Step 5: Solve for x
   x = 3,995,217.56/2,090.88
6. Step 6: Final answer
   x = 1,910.78