Finding the Fourth Proportional to 2,533.79, 3,506.22 and 2,160.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,533.79 : 3,506.22 = 2,160.18 : x
2. Step 2: Convert to fraction form
   2,533.79/3,506.22 = 2,160.18/x
3. Step 3: Cross multiply
   2,533.79x = 3,506.22 × 2,160.18
4. Step 4: Simplify right side
   2,533.79x = 7,574,066.32
5. Step 5: Solve for x
   x = 7,574,066.32/2,533.79
6. Step 6: Final answer
   x = 2,989.22