Finding the Fourth Proportional to 2,783.55, 4,176.09 and 1,395.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,783.55 : 4,176.09 = 1,395.21 : x
2. Step 2: Convert to fraction form
   2,783.55/4,176.09 = 1,395.21/x
3. Step 3: Cross multiply
   2,783.55x = 4,176.09 × 1,395.21
4. Step 4: Simplify right side
   2,783.55x = 5,826,514.70
5. Step 5: Solve for x
   x = 5,826,514.70/2,783.55
6. Step 6: Final answer
   x = 2,093.20