Finding the Fourth Proportional to 2,214.35, 3,055.69 and 1,219.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,214.35 : 3,055.69 = 1,219.60 : x
2. Step 2: Convert to fraction form
   2,214.35/3,055.69 = 1,219.60/x
3. Step 3: Cross multiply
   2,214.35x = 3,055.69 × 1,219.60
4. Step 4: Simplify right side
   2,214.35x = 3,726,727.24
5. Step 5: Solve for x
   x = 3,726,727.24/2,214.35
6. Step 6: Final answer
   x = 1,682.99