Finding the Fourth Proportional to 2,143.83, 3,216.22 and 682.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143.83 : 3,216.22 = 682.98 : x
2. Step 2: Convert to fraction form
   2,143.83/3,216.22 = 682.98/x
3. Step 3: Cross multiply
   2,143.83x = 3,216.22 × 682.98
4. Step 4: Simplify right side
   2,143.83x = 2,196,619.22
5. Step 5: Solve for x
   x = 2,196,619.22/2,143.83
6. Step 6: Final answer
   x = 1,024.62