Finding the Fourth Proportional to 2,381.52, 3,571.27 and 900.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,381.52 : 3,571.27 = 900.49 : x
2. Step 2: Convert to fraction form
   2,381.52/3,571.27 = 900.49/x
3. Step 3: Cross multiply
   2,381.52x = 3,571.27 × 900.49
4. Step 4: Simplify right side
   2,381.52x = 3,215,890.71
5. Step 5: Solve for x
   x = 3,215,890.71/2,381.52
6. Step 6: Final answer
   x = 1,350.35