Finding the Fourth Proportional to 1,419.83, 1,959.32 and 790.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,419.83 : 1,959.32 = 790.32 : x
2. Step 2: Convert to fraction form
   1,419.83/1,959.32 = 790.32/x
3. Step 3: Cross multiply
   1,419.83x = 1,959.32 × 790.32
4. Step 4: Simplify right side
   1,419.83x = 1,548,485.83
5. Step 5: Solve for x
   x = 1,548,485.83/1,419.83
6. Step 6: Final answer
   x = 1,090.62