Finding the Fourth Proportional to 2,821.77, 4,229.67 and 1,357.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,821.77 : 4,229.67 = 1,357.83 : x
2. Step 2: Convert to fraction form
   2,821.77/4,229.67 = 1,357.83/x
3. Step 3: Cross multiply
   2,821.77x = 4,229.67 × 1,357.83
4. Step 4: Simplify right side
   2,821.77x = 5,743,172.82
5. Step 5: Solve for x
   x = 5,743,172.82/2,821.77
6. Step 6: Final answer
   x = 2,035.31