Finding the Fourth Proportional to 1,219.39, 1,682.22 and 799.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,219.39 : 1,682.22 = 799.59 : x
2. Step 2: Convert to fraction form
   1,219.39/1,682.22 = 799.59/x
3. Step 3: Cross multiply
   1,219.39x = 1,682.22 × 799.59
4. Step 4: Simplify right side
   1,219.39x = 1,345,086.29
5. Step 5: Solve for x
   x = 1,345,086.29/1,219.39
6. Step 6: Final answer
   x = 1,103.08