Finding the Fourth Proportional to 2,843.57, 4,265.82 and 1,200.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,843.57 : 4,265.82 = 1,200.35 : x
2. Step 2: Convert to fraction form
   2,843.57/4,265.82 = 1,200.35/x
3. Step 3: Cross multiply
   2,843.57x = 4,265.82 × 1,200.35
4. Step 4: Simplify right side
   2,843.57x = 5,120,455.71
5. Step 5: Solve for x
   x = 5,120,455.71/2,843.57
6. Step 6: Final answer
   x = 1,800.72