Finding the Fourth Proportional to 3,218.94, 4,443.49 and 2,100.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,218.94 : 4,443.49 = 2,100.83 : x
2. Step 2: Convert to fraction form
   3,218.94/4,443.49 = 2,100.83/x
3. Step 3: Cross multiply
   3,218.94x = 4,443.49 × 2,100.83
4. Step 4: Simplify right side
   3,218.94x = 9,335,017.10
5. Step 5: Solve for x
   x = 9,335,017.10/3,218.94
6. Step 6: Final answer
   x = 2,900.03