Finding the Fourth Proportional to 2,213.77, 3,054.89 and 1,219.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,213.77 : 3,054.89 = 1,219.09 : x
2. Step 2: Convert to fraction form
   2,213.77/3,054.89 = 1,219.09/x
3. Step 3: Cross multiply
   2,213.77x = 3,054.89 × 1,219.09
4. Step 4: Simplify right side
   2,213.77x = 3,724,181.26
5. Step 5: Solve for x
   x = 3,724,181.26/2,213.77
6. Step 6: Final answer
   x = 1,682.28