Finding the Fourth Proportional to 2,379.41, 3,568.79 and 1,080.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.41 : 3,568.79 = 1,080.57 : x
2. Step 2: Convert to fraction form
   2,379.41/3,568.79 = 1,080.57/x
3. Step 3: Cross multiply
   2,379.41x = 3,568.79 × 1,080.57
4. Step 4: Simplify right side
   2,379.41x = 3,856,322.01
5. Step 5: Solve for x
   x = 3,856,322.01/2,379.41
6. Step 6: Final answer
   x = 1,620.71