Finding the Fourth Proportional to 2,379.80, 3,284.94 and 1,436.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.80 : 3,284.94 = 1,436.12 : x
2. Step 2: Convert to fraction form
   2,379.80/3,284.94 = 1,436.12/x
3. Step 3: Cross multiply
   2,379.80x = 3,284.94 × 1,436.12
4. Step 4: Simplify right side
   2,379.80x = 4,717,568.03
5. Step 5: Solve for x
   x = 4,717,568.03/2,379.80
6. Step 6: Final answer
   x = 1,982.34