Finding the Fourth Proportional to 2,379.86, 3,565.74 and 1,339.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.86 : 3,565.74 = 1,339.46 : x
2. Step 2: Convert to fraction form
   2,379.86/3,565.74 = 1,339.46/x
3. Step 3: Cross multiply
   2,379.86x = 3,565.74 × 1,339.46
4. Step 4: Simplify right side
   2,379.86x = 4,776,166.10
5. Step 5: Solve for x
   x = 4,776,166.10/2,379.86
6. Step 6: Final answer
   x = 2,006.91