Finding the Fourth Proportional to 2,858.42, 4,286.62 and 1,103.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,858.42 : 4,286.62 = 1,103.56 : x
2. Step 2: Convert to fraction form
   2,858.42/4,286.62 = 1,103.56/x
3. Step 3: Cross multiply
   2,858.42x = 4,286.62 × 1,103.56
4. Step 4: Simplify right side
   2,858.42x = 4,730,542.37
5. Step 5: Solve for x
   x = 4,730,542.37/2,858.42
6. Step 6: Final answer
   x = 1,654.95