Finding the Fourth Proportional to 2,215.17, 3,323.67 and 1,119.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,215.17 : 3,323.67 = 1,119.86 : x
2. Step 2: Convert to fraction form
   2,215.17/3,323.67 = 1,119.86/x
3. Step 3: Cross multiply
   2,215.17x = 3,323.67 × 1,119.86
4. Step 4: Simplify right side
   2,215.17x = 3,722,028.47
5. Step 5: Solve for x
   x = 3,722,028.47/2,215.17
6. Step 6: Final answer
   x = 1,680.25