Finding the Fourth Proportional to 2,574.76, 3,859.44 and 1,340.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,574.76 : 3,859.44 = 1,340.86 : x
2. Step 2: Convert to fraction form
   2,574.76/3,859.44 = 1,340.86/x
3. Step 3: Cross multiply
   2,574.76x = 3,859.44 × 1,340.86
4. Step 4: Simplify right side
   2,574.76x = 5,174,968.72
5. Step 5: Solve for x
   x = 5,174,968.72/2,574.76
6. Step 6: Final answer
   x = 2,009.88