Finding the Fourth Proportional to 1,790.52, 2,682.20 and 863.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,790.52 : 2,682.20 = 863.34 : x
2. Step 2: Convert to fraction form
   1,790.52/2,682.20 = 863.34/x
3. Step 3: Cross multiply
   1,790.52x = 2,682.20 × 863.34
4. Step 4: Simplify right side
   1,790.52x = 2,315,650.55
5. Step 5: Solve for x
   x = 2,315,650.55/1,790.52
6. Step 6: Final answer
   x = 1,293.28