Finding the Fourth Proportional to 2,214.56, 3,056.06 and 1,219.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,214.56 : 3,056.06 = 1,219.94 : x
2. Step 2: Convert to fraction form
   2,214.56/3,056.06 = 1,219.94/x
3. Step 3: Cross multiply
   2,214.56x = 3,056.06 × 1,219.94
4. Step 4: Simplify right side
   2,214.56x = 3,728,193.03
5. Step 5: Solve for x
   x = 3,728,193.03/2,214.56
6. Step 6: Final answer
   x = 1,683.49