Finding the Fourth Proportional to 2,287.05, 3,154.41 and 1,436.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,287.05 : 3,154.41 = 1,436.55 : x
2. Step 2: Convert to fraction form
   2,287.05/3,154.41 = 1,436.55/x
3. Step 3: Cross multiply
   2,287.05x = 3,154.41 × 1,436.55
4. Step 4: Simplify right side
   2,287.05x = 4,531,467.69
5. Step 5: Solve for x
   x = 4,531,467.69/2,287.05
6. Step 6: Final answer
   x = 1,981.36