Finding the Fourth Proportional to 2,286.67, 3,428.43 and 900.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,286.67 : 3,428.43 = 900.16 : x
2. Step 2: Convert to fraction form
   2,286.67/3,428.43 = 900.16/x
3. Step 3: Cross multiply
   2,286.67x = 3,428.43 × 900.16
4. Step 4: Simplify right side
   2,286.67x = 3,086,142.89
5. Step 5: Solve for x
   x = 3,086,142.89/2,286.67
6. Step 6: Final answer
   x = 1,349.62