Finding the Fourth Proportional to 2,815.30, 4,222.57 and 735.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,815.30 : 4,222.57 = 735.47 : x
2. Step 2: Convert to fraction form
   2,815.30/4,222.57 = 735.47/x
3. Step 3: Cross multiply
   2,815.30x = 4,222.57 × 735.47
4. Step 4: Simplify right side
   2,815.30x = 3,105,573.56
5. Step 5: Solve for x
   x = 3,105,573.56/2,815.30
6. Step 6: Final answer
   x = 1,103.11