Finding the Fourth Proportional to 1,892.96, 2,820.96 and 1,831.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892.96 : 2,820.96 = 1,831.04 : x
2. Step 2: Convert to fraction form
   1,892.96/2,820.96 = 1,831.04/x
3. Step 3: Cross multiply
   1,892.96x = 2,820.96 × 1,831.04
4. Step 4: Simplify right side
   1,892.96x = 5,165,290.60
5. Step 5: Solve for x
   x = 5,165,290.60/1,892.96
6. Step 6: Final answer
   x = 2,728.68