Finding the Fourth Proportional to 2,090.27, 3,138.74 and 1,831.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090.27 : 3,138.74 = 1,831.48 : x
2. Step 2: Convert to fraction form
   2,090.27/3,138.74 = 1,831.48/x
3. Step 3: Cross multiply
   2,090.27x = 3,138.74 × 1,831.48
4. Step 4: Simplify right side
   2,090.27x = 5,748,539.54
5. Step 5: Solve for x
   x = 5,748,539.54/2,090.27
6. Step 6: Final answer
   x = 2,750.14