Finding the Fourth Proportional to 2,287.98, 3,432.15 and 901.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.98 : 3,432.15 = 901.22 : x
2. Step 2: Convert to fraction form
   2,287.98/3,432.15 = 901.22/x
3. Step 3: Cross multiply
   2,287.98x = 3,432.15 × 901.22
4. Step 4: Simplify right side
   2,287.98x = 3,093,122.22
5. Step 5: Solve for x
   x = 3,093,122.22/2,287.98
6. Step 6: Final answer
   x = 1,351.90