Finding the Fourth Proportional to 2,218.37, 3,324.83 and 1,123.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,218.37 : 3,324.83 = 1,123.06 : x
2. Step 2: Convert to fraction form
   2,218.37/3,324.83 = 1,123.06/x
3. Step 3: Cross multiply
   2,218.37x = 3,324.83 × 1,123.06
4. Step 4: Simplify right side
   2,218.37x = 3,733,961.34
5. Step 5: Solve for x
   x = 3,733,961.34/2,218.37
6. Step 6: Final answer
   x = 1,683.20