Finding the Fourth Proportional to 1,419.85, 1,959.11 and 830.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,419.85 : 1,959.11 = 830.27 : x
2. Step 2: Convert to fraction form
   1,419.85/1,959.11 = 830.27/x
3. Step 3: Cross multiply
   1,419.85x = 1,959.11 × 830.27
4. Step 4: Simplify right side
   1,419.85x = 1,626,594.12
5. Step 5: Solve for x
   x = 1,626,594.12/1,419.85
6. Step 6: Final answer
   x = 1,145.61