Finding the Fourth Proportional to 3,571.34, 5,355.26 and 1,490.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,571.34 : 5,355.26 = 1,490.72 : x
2. Step 2: Convert to fraction form
   3,571.34/5,355.26 = 1,490.72/x
3. Step 3: Cross multiply
   3,571.34x = 5,355.26 × 1,490.72
4. Step 4: Simplify right side
   3,571.34x = 7,983,185.73
5. Step 5: Solve for x
   x = 7,983,185.73/3,571.34
6. Step 6: Final answer
   x = 2,235.35