Finding the Fourth Proportional to 2,213.84, 3,055.30 and 1,219.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,213.84 : 3,055.30 = 1,219.32 : x
2. Step 2: Convert to fraction form
   2,213.84/3,055.30 = 1,219.32/x
3. Step 3: Cross multiply
   2,213.84x = 3,055.30 × 1,219.32
4. Step 4: Simplify right side
   2,213.84x = 3,725,388.40
5. Step 5: Solve for x
   x = 3,725,388.40/2,213.84
6. Step 6: Final answer
   x = 1,682.77