Finding the Fourth Proportional to 3,417.73, 5,128.76 and 1,959.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,417.73 : 5,128.76 = 1,959.73 : x
2. Step 2: Convert to fraction form
   3,417.73/5,128.76 = 1,959.73/x
3. Step 3: Cross multiply
   3,417.73x = 5,128.76 × 1,959.73
4. Step 4: Simplify right side
   3,417.73x = 10,050,984.83
5. Step 5: Solve for x
   x = 10,050,984.83/3,417.73
6. Step 6: Final answer
   x = 2,940.84