Finding the Fourth Proportional to 2,256.33, 3,380.41 and 1,215.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256.33 : 3,380.41 = 1,215.24 : x
2. Step 2: Convert to fraction form
   2,256.33/3,380.41 = 1,215.24/x
3. Step 3: Cross multiply
   2,256.33x = 3,380.41 × 1,215.24
4. Step 4: Simplify right side
   2,256.33x = 4,108,009.45
5. Step 5: Solve for x
   x = 4,108,009.45/2,256.33
6. Step 6: Final answer
   x = 1,820.66