Finding the Fourth Proportional to 2,289.89, 3,433.47 and 901.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,289.89 : 3,433.47 = 901.62 : x
2. Step 2: Convert to fraction form
   2,289.89/3,433.47 = 901.62/x
3. Step 3: Cross multiply
   2,289.89x = 3,433.47 × 901.62
4. Step 4: Simplify right side
   2,289.89x = 3,095,685.22
5. Step 5: Solve for x
   x = 3,095,685.22/2,289.89
6. Step 6: Final answer
   x = 1,351.90