Finding the Fourth Proportional to 2,285.34, 3,427.21 and 1,505.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,285.34 : 3,427.21 = 1,505.31 : x
2. Step 2: Convert to fraction form
   2,285.34/3,427.21 = 1,505.31/x
3. Step 3: Cross multiply
   2,285.34x = 3,427.21 × 1,505.31
4. Step 4: Simplify right side
   2,285.34x = 5,159,013.49
5. Step 5: Solve for x
   x = 5,159,013.49/2,285.34
6. Step 6: Final answer
   x = 2,257.44