Finding the Fourth Proportional to 1,420.83, 1,959.98 and 966.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,420.83 : 1,959.98 = 966.42 : x
2. Step 2: Convert to fraction form
   1,420.83/1,959.98 = 966.42/x
3. Step 3: Cross multiply
   1,420.83x = 1,959.98 × 966.42
4. Step 4: Simplify right side
   1,420.83x = 1,894,166.29
5. Step 5: Solve for x
   x = 1,894,166.29/1,420.83
6. Step 6: Final answer
   x = 1,333.14