Finding the Fourth Proportional to 2,431.69, 3,355.74 and 1,436.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,431.69 : 3,355.74 = 1,436.96 : x
2. Step 2: Convert to fraction form
   2,431.69/3,355.74 = 1,436.96/x
3. Step 3: Cross multiply
   2,431.69x = 3,355.74 × 1,436.96
4. Step 4: Simplify right side
   2,431.69x = 4,822,072.54
5. Step 5: Solve for x
   x = 4,822,072.54/2,431.69
6. Step 6: Final answer
   x = 1,983.01