Finding the Fourth Proportional to 6,821.96, 10,231.79 and 1,892.10

Step by Step Solution

1. Step 1: Write the proportion equation
   6,821.96 : 10,231.79 = 1,892.10 : x
2. Step 2: Convert to fraction form
   6,821.96/10,231.79 = 1,892.10/x
3. Step 3: Cross multiply
   6,821.96x = 10,231.79 × 1,892.10
4. Step 4: Simplify right side
   6,821.96x = 19,359,569.86
5. Step 5: Solve for x
   x = 19,359,569.86/6,821.96
6. Step 6: Final answer
   x = 2,837.83