Finding the Fourth Proportional to 2,066.87, 2,852.39 and 1,320.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.87 : 2,852.39 = 1,320.23 : x
2. Step 2: Convert to fraction form
   2,066.87/2,852.39 = 1,320.23/x
3. Step 3: Cross multiply
   2,066.87x = 2,852.39 × 1,320.23
4. Step 4: Simplify right side
   2,066.87x = 3,765,804.25
5. Step 5: Solve for x
   x = 3,765,804.25/2,066.87
6. Step 6: Final answer
   x = 1,821.98