Finding the Fourth Proportional to 2,215.38, 3,326.15 and 1,120.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,215.38 : 3,326.15 = 1,120.52 : x
2. Step 2: Convert to fraction form
   2,215.38/3,326.15 = 1,120.52/x
3. Step 3: Cross multiply
   2,215.38x = 3,326.15 × 1,120.52
4. Step 4: Simplify right side
   2,215.38x = 3,726,995.36
5. Step 5: Solve for x
   x = 3,726,995.36/2,215.38
6. Step 6: Final answer
   x = 1,682.33