Finding the Fourth Proportional to 1,682.78, 2,517.48 and 1,419.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,682.78 : 2,517.48 = 1,419.83 : x
2. Step 2: Convert to fraction form
   1,682.78/2,517.48 = 1,419.83/x
3. Step 3: Cross multiply
   1,682.78x = 2,517.48 × 1,419.83
4. Step 4: Simplify right side
   1,682.78x = 3,574,390.48
5. Step 5: Solve for x
   x = 3,574,390.48/1,682.78
6. Step 6: Final answer
   x = 2,124.10