Finding the Fourth Proportional to 2,214.31, 3,055.71 and 1,219.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,214.31 : 3,055.71 = 1,219.57 : x
2. Step 2: Convert to fraction form
   2,214.31/3,055.71 = 1,219.57/x
3. Step 3: Cross multiply
   2,214.31x = 3,055.71 × 1,219.57
4. Step 4: Simplify right side
   2,214.31x = 3,726,652.24
5. Step 5: Solve for x
   x = 3,726,652.24/2,214.31
6. Step 6: Final answer
   x = 1,682.99