Finding the Fourth Proportional to 2,959.58, 4,438.83 and 1,292.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,959.58 : 4,438.83 = 1,292.80 : x
2. Step 2: Convert to fraction form
   2,959.58/4,438.83 = 1,292.80/x
3. Step 3: Cross multiply
   2,959.58x = 4,438.83 × 1,292.80
4. Step 4: Simplify right side
   2,959.58x = 5,738,519.42
5. Step 5: Solve for x
   x = 5,738,519.42/2,959.58
6. Step 6: Final answer
   x = 1,938.96