Finding the Fourth Proportional to 3,385.98, 5,083.83 and 2,212.29

Step by Step Solution

1. Step 1: Write the proportion equation
   3,385.98 : 5,083.83 = 2,212.29 : x
2. Step 2: Convert to fraction form
   3,385.98/5,083.83 = 2,212.29/x
3. Step 3: Cross multiply
   3,385.98x = 5,083.83 × 2,212.29
4. Step 4: Simplify right side
   3,385.98x = 11,246,906.27
5. Step 5: Solve for x
   x = 11,246,906.27/3,385.98
6. Step 6: Final answer
   x = 3,321.61