Finding the Fourth Proportional to 1,419.82, 1,959.39 and 790.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,419.82 : 1,959.39 = 790.33 : x
2. Step 2: Convert to fraction form
   1,419.82/1,959.39 = 790.33/x
3. Step 3: Cross multiply
   1,419.82x = 1,959.39 × 790.33
4. Step 4: Simplify right side
   1,419.82x = 1,548,564.70
5. Step 5: Solve for x
   x = 1,548,564.70/1,419.82
6. Step 6: Final answer
   x = 1,090.68