Finding the Fourth Proportional to 2,440.50, 3,660.78 and 901.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,440.50 : 3,660.78 = 901.50 : x
2. Step 2: Convert to fraction form
   2,440.50/3,660.78 = 901.50/x
3. Step 3: Cross multiply
   2,440.50x = 3,660.78 × 901.50
4. Step 4: Simplify right side
   2,440.50x = 3,300,193.17
5. Step 5: Solve for x
   x = 3,300,193.17/2,440.50
6. Step 6: Final answer
   x = 1,352.26