Finding the Fourth Proportional to 2,928.10, 4,388.24 and 1,282.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,928.10 : 4,388.24 = 1,282.84 : x
2. Step 2: Convert to fraction form
   2,928.10/4,388.24 = 1,282.84/x
3. Step 3: Cross multiply
   2,928.10x = 4,388.24 × 1,282.84
4. Step 4: Simplify right side
   2,928.10x = 5,629,409.80
5. Step 5: Solve for x
   x = 5,629,409.80/2,928.10
6. Step 6: Final answer
   x = 1,922.55