Finding the Fourth Proportional to 2,059.24, 2,840.52 and 1,722.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,059.24 : 2,840.52 = 1,722.28 : x
2. Step 2: Convert to fraction form
   2,059.24/2,840.52 = 1,722.28/x
3. Step 3: Cross multiply
   2,059.24x = 2,840.52 × 1,722.28
4. Step 4: Simplify right side
   2,059.24x = 4,892,170.79
5. Step 5: Solve for x
   x = 4,892,170.79/2,059.24
6. Step 6: Final answer
   x = 2,375.72