Finding the Fourth Proportional to 2,213.89, 3,055.15 and 1,219.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,213.89 : 3,055.15 = 1,219.19 : x
2. Step 2: Convert to fraction form
   2,213.89/3,055.15 = 1,219.19/x
3. Step 3: Cross multiply
   2,213.89x = 3,055.15 × 1,219.19
4. Step 4: Simplify right side
   2,213.89x = 3,724,808.33
5. Step 5: Solve for x
   x = 3,724,808.33/2,213.89
6. Step 6: Final answer
   x = 1,682.47