Finding the Fourth Proportional to 3,419.73, 5,131.76 and 1,961.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,419.73 : 5,131.76 = 1,961.73 : x
2. Step 2: Convert to fraction form
   3,419.73/5,131.76 = 1,961.73/x
3. Step 3: Cross multiply
   3,419.73x = 5,131.76 × 1,961.73
4. Step 4: Simplify right side
   3,419.73x = 10,067,127.54
5. Step 5: Solve for x
   x = 10,067,127.54/3,419.73
6. Step 6: Final answer
   x = 2,943.84