Finding the Fourth Proportional to 2,164.72, 2,982.36 and 1,698.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,164.72 : 2,982.36 = 1,698.16 : x
2. Step 2: Convert to fraction form
   2,164.72/2,982.36 = 1,698.16/x
3. Step 3: Cross multiply
   2,164.72x = 2,982.36 × 1,698.16
4. Step 4: Simplify right side
   2,164.72x = 5,064,524.46
5. Step 5: Solve for x
   x = 5,064,524.46/2,164.72
6. Step 6: Final answer
   x = 2,339.57