Finding the Fourth Proportional to 3,809.94, 5,714.73 and 1,860.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,809.94 : 5,714.73 = 1,860.18 : x
2. Step 2: Convert to fraction form
   3,809.94/5,714.73 = 1,860.18/x
3. Step 3: Cross multiply
   3,809.94x = 5,714.73 × 1,860.18
4. Step 4: Simplify right side
   3,809.94x = 10,630,426.45
5. Step 5: Solve for x
   x = 10,630,426.45/3,809.94
6. Step 6: Final answer
   x = 2,790.18