Finding the Fourth Proportional to 2,184.27, 3,005.81 and 2,120.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,184.27 : 3,005.81 = 2,120.18 : x
2. Step 2: Convert to fraction form
   2,184.27/3,005.81 = 2,120.18/x
3. Step 3: Cross multiply
   2,184.27x = 3,005.81 × 2,120.18
4. Step 4: Simplify right side
   2,184.27x = 6,372,840.57
5. Step 5: Solve for x
   x = 6,372,840.57/2,184.27
6. Step 6: Final answer
   x = 2,917.61