Finding the Fourth Proportional to 2,213.27, 3,054.27 and 1,218.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,213.27 : 3,054.27 = 1,218.54 : x
2. Step 2: Convert to fraction form
   2,213.27/3,054.27 = 1,218.54/x
3. Step 3: Cross multiply
   2,213.27x = 3,054.27 × 1,218.54
4. Step 4: Simplify right side
   2,213.27x = 3,721,750.17
5. Step 5: Solve for x
   x = 3,721,750.17/2,213.27
6. Step 6: Final answer
   x = 1,681.56