Finding the Fourth Proportional to 2,160.72, 2,976.84 and 1,694.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,160.72 : 2,976.84 = 1,694.16 : x
2. Step 2: Convert to fraction form
   2,160.72/2,976.84 = 1,694.16/x
3. Step 3: Cross multiply
   2,160.72x = 2,976.84 × 1,694.16
4. Step 4: Simplify right side
   2,160.72x = 5,043,243.25
5. Step 5: Solve for x
   x = 5,043,243.25/2,160.72
6. Step 6: Final answer
   x = 2,334.06