Finding the Fourth Proportional to 2,028.80, 2,799.76 and 1,120.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,028.80 : 2,799.76 = 1,120.34 : x
2. Step 2: Convert to fraction form
   2,028.80/2,799.76 = 1,120.34/x
3. Step 3: Cross multiply
   2,028.80x = 2,799.76 × 1,120.34
4. Step 4: Simplify right side
   2,028.80x = 3,136,683.12
5. Step 5: Solve for x
   x = 3,136,683.12/2,028.80
6. Step 6: Final answer
   x = 1,546.08