Finding the Fourth Proportional to 2,216.38, 3,327.65 and 1,121.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,216.38 : 3,327.65 = 1,121.52 : x
2. Step 2: Convert to fraction form
   2,216.38/3,327.65 = 1,121.52/x
3. Step 3: Cross multiply
   2,216.38x = 3,327.65 × 1,121.52
4. Step 4: Simplify right side
   2,216.38x = 3,732,026.03
5. Step 5: Solve for x
   x = 3,732,026.03/2,216.38
6. Step 6: Final answer
   x = 1,683.84