Finding the Fourth Proportional to 2,573.76, 3,857.94 and 1,339.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,573.76 : 3,857.94 = 1,339.86 : x
2. Step 2: Convert to fraction form
   2,573.76/3,857.94 = 1,339.86/x
3. Step 3: Cross multiply
   2,573.76x = 3,857.94 × 1,339.86
4. Step 4: Simplify right side
   2,573.76x = 5,169,099.49
5. Step 5: Solve for x
   x = 5,169,099.49/2,573.76
6. Step 6: Final answer
   x = 2,008.38