Finding the Fourth Proportional to 2,821.82, 4,233.18 and 1,724.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,821.82 : 4,233.18 = 1,724.67 : x
2. Step 2: Convert to fraction form
   2,821.82/4,233.18 = 1,724.67/x
3. Step 3: Cross multiply
   2,821.82x = 4,233.18 × 1,724.67
4. Step 4: Simplify right side
   2,821.82x = 7,300,838.55
5. Step 5: Solve for x
   x = 7,300,838.55/2,821.82
6. Step 6: Final answer
   x = 2,587.28