Finding the Fourth Proportional to 2,865.42, 4,290.03 and 1,822.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,865.42 : 4,290.03 = 1,822.83 : x
2. Step 2: Convert to fraction form
   2,865.42/4,290.03 = 1,822.83/x
3. Step 3: Cross multiply
   2,865.42x = 4,290.03 × 1,822.83
4. Step 4: Simplify right side
   2,865.42x = 7,819,995.38
5. Step 5: Solve for x
   x = 7,819,995.38/2,865.42
6. Step 6: Final answer
   x = 2,729.09