Finding the Fourth Proportional to 1,831.38, 2,527.31 and 992.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,831.38 : 2,527.31 = 992.09 : x
2. Step 2: Convert to fraction form
   1,831.38/2,527.31 = 992.09/x
3. Step 3: Cross multiply
   1,831.38x = 2,527.31 × 992.09
4. Step 4: Simplify right side
   1,831.38x = 2,507,318.98
5. Step 5: Solve for x
   x = 2,507,318.98/1,831.38
6. Step 6: Final answer
   x = 1,369.09