Finding the Fourth Proportional to 2,066.56, 2,852.20 and 1,320.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.56 : 2,852.20 = 1,320.84 : x
2. Step 2: Convert to fraction form
   2,066.56/2,852.20 = 1,320.84/x
3. Step 3: Cross multiply
   2,066.56x = 2,852.20 × 1,320.84
4. Step 4: Simplify right side
   2,066.56x = 3,767,299.85
5. Step 5: Solve for x
   x = 3,767,299.85/2,066.56
6. Step 6: Final answer
   x = 1,822.98