Finding the Fourth Proportional to 2,214.37, 3,055.89 and 1,219.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,214.37 : 3,055.89 = 1,219.78 : x
2. Step 2: Convert to fraction form
   2,214.37/3,055.89 = 1,219.78/x
3. Step 3: Cross multiply
   2,214.37x = 3,055.89 × 1,219.78
4. Step 4: Simplify right side
   2,214.37x = 3,727,513.50
5. Step 5: Solve for x
   x = 3,727,513.50/2,214.37
6. Step 6: Final answer
   x = 1,683.33