Finding the Fourth Proportional to 1,300.82, 1,794.80 and 859.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.82 : 1,794.80 = 859.42 : x
2. Step 2: Convert to fraction form
   1,300.82/1,794.80 = 859.42/x
3. Step 3: Cross multiply
   1,300.82x = 1,794.80 × 859.42
4. Step 4: Simplify right side
   1,300.82x = 1,542,487.02
5. Step 5: Solve for x
   x = 1,542,487.02/1,300.82
6. Step 6: Final answer
   x = 1,185.78