Finding the Fourth Proportional to 2,217.42, 3,327.04 and 1,122.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,217.42 : 3,327.04 = 1,122.10 : x
2. Step 2: Convert to fraction form
   2,217.42/3,327.04 = 1,122.10/x
3. Step 3: Cross multiply
   2,217.42x = 3,327.04 × 1,122.10
4. Step 4: Simplify right side
   2,217.42x = 3,733,271.58
5. Step 5: Solve for x
   x = 3,733,271.58/2,217.42
6. Step 6: Final answer
   x = 1,683.61