Finding the Fourth Proportional to 2,164.72, 3,261.58 and 1,959.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,164.72 : 3,261.58 = 1,959.52 : x
2. Step 2: Convert to fraction form
   2,164.72/3,261.58 = 1,959.52/x
3. Step 3: Cross multiply
   2,164.72x = 3,261.58 × 1,959.52
4. Step 4: Simplify right side
   2,164.72x = 6,391,131.24
5. Step 5: Solve for x
   x = 6,391,131.24/2,164.72
6. Step 6: Final answer
   x = 2,952.41