Finding the Fourth Proportional to 2,884.09, 4,323.55 and 1,128.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,884.09 : 4,323.55 = 1,128.69 : x
2. Step 2: Convert to fraction form
   2,884.09/4,323.55 = 1,128.69/x
3. Step 3: Cross multiply
   2,884.09x = 4,323.55 × 1,128.69
4. Step 4: Simplify right side
   2,884.09x = 4,879,947.65
5. Step 5: Solve for x
   x = 4,879,947.65/2,884.09
6. Step 6: Final answer
   x = 1,692.02