Finding the Fourth Proportional to 2,830.57, 4,245.72 and 1,365.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,830.57 : 4,245.72 = 1,365.28 : x
2. Step 2: Convert to fraction form
   2,830.57/4,245.72 = 1,365.28/x
3. Step 3: Cross multiply
   2,830.57x = 4,245.72 × 1,365.28
4. Step 4: Simplify right side
   2,830.57x = 5,796,596.60
5. Step 5: Solve for x
   x = 5,796,596.60/2,830.57
6. Step 6: Final answer
   x = 2,047.85