Finding the Fourth Proportional to 2,142.86, 3,214.35 and 683.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142.86 : 3,214.35 = 683.10 : x
2. Step 2: Convert to fraction form
   2,142.86/3,214.35 = 683.10/x
3. Step 3: Cross multiply
   2,142.86x = 3,214.35 × 683.10
4. Step 4: Simplify right side
   2,142.86x = 2,195,722.49
5. Step 5: Solve for x
   x = 2,195,722.49/2,142.86
6. Step 6: Final answer
   x = 1,024.67