Finding the Fourth Proportional to 2,217.32, 3,328.04 and 1,122.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,217.32 : 3,328.04 = 1,122.46 : x
2. Step 2: Convert to fraction form
   2,217.32/3,328.04 = 1,122.46/x
3. Step 3: Cross multiply
   2,217.32x = 3,328.04 × 1,122.46
4. Step 4: Simplify right side
   2,217.32x = 3,735,569.53
5. Step 5: Solve for x
   x = 3,735,569.53/2,217.32
6. Step 6: Final answer
   x = 1,684.73