Finding the Fourth Proportional to 1,419.12, 1,958.38 and 798.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,419.12 : 1,958.38 = 798.12 : x
2. Step 2: Convert to fraction form
   1,419.12/1,958.38 = 798.12/x
3. Step 3: Cross multiply
   1,419.12x = 1,958.38 × 798.12
4. Step 4: Simplify right side
   1,419.12x = 1,563,022.25
5. Step 5: Solve for x
   x = 1,563,022.25/1,419.12
6. Step 6: Final answer
   x = 1,101.40