Finding the Fourth Proportional to 2,827.90, 3,903.42 and 1,831.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,827.90 : 3,903.42 = 1,831.42 : x
2. Step 2: Convert to fraction form
   2,827.90/3,903.42 = 1,831.42/x
3. Step 3: Cross multiply
   2,827.90x = 3,903.42 × 1,831.42
4. Step 4: Simplify right side
   2,827.90x = 7,148,801.46
5. Step 5: Solve for x
   x = 7,148,801.46/2,827.90
6. Step 6: Final answer
   x = 2,527.95