Finding the Fourth Proportional to 2,390.32, 3,584.94 and 909.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,390.32 : 3,584.94 = 909.01 : x
2. Step 2: Convert to fraction form
   2,390.32/3,584.94 = 909.01/x
3. Step 3: Cross multiply
   2,390.32x = 3,584.94 × 909.01
4. Step 4: Simplify right side
   2,390.32x = 3,258,755.27
5. Step 5: Solve for x
   x = 3,258,755.27/2,390.32
6. Step 6: Final answer
   x = 1,363.31