Finding the Fourth Proportional to 1,804.81, 2,708.57 and 1,218.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,804.81 : 2,708.57 = 1,218.42 : x
2. Step 2: Convert to fraction form
   1,804.81/2,708.57 = 1,218.42/x
3. Step 3: Cross multiply
   1,804.81x = 2,708.57 × 1,218.42
4. Step 4: Simplify right side
   1,804.81x = 3,300,178.91
5. Step 5: Solve for x
   x = 3,300,178.91/1,804.81
6. Step 6: Final answer
   x = 1,828.55