Finding the Fourth Proportional to 2,287.89, 3,432.65 and 900.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.89 : 3,432.65 = 900.46 : x
2. Step 2: Convert to fraction form
   2,287.89/3,432.65 = 900.46/x
3. Step 3: Cross multiply
   2,287.89x = 3,432.65 × 900.46
4. Step 4: Simplify right side
   2,287.89x = 3,090,957.69
5. Step 5: Solve for x
   x = 3,090,957.69/2,287.89
6. Step 6: Final answer
   x = 1,351.01