Finding the Fourth Proportional to 3,809.27, 5,714.37 and 1,860

Step by Step Solution

1. Step 1: Write the proportion equation
   3,809.27 : 5,714.37 = 1,860 : x
2. Step 2: Convert to fraction form
   3,809.27/5,714.37 = 1,860/x
3. Step 3: Cross multiply
   3,809.27x = 5,714.37 × 1,860
4. Step 4: Simplify right side
   3,809.27x = 10,628,728.20
5. Step 5: Solve for x
   x = 10,628,728.20/3,809.27
6. Step 6: Final answer
   x = 2,790.23