Finding the Fourth Proportional to 1,519.47, 2,095.20 and 959.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,519.47 : 2,095.20 = 959.31 : x
2. Step 2: Convert to fraction form
   1,519.47/2,095.20 = 959.31/x
3. Step 3: Cross multiply
   1,519.47x = 2,095.20 × 959.31
4. Step 4: Simplify right side
   1,519.47x = 2,009,946.31
5. Step 5: Solve for x
   x = 2,009,946.31/1,519.47
6. Step 6: Final answer
   x = 1,322.79