Finding the Fourth Proportional to 2,824.80, 4,234.72 and 1,093.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,824.80 : 4,234.72 = 1,093.12 : x
2. Step 2: Convert to fraction form
   2,824.80/4,234.72 = 1,093.12/x
3. Step 3: Cross multiply
   2,824.80x = 4,234.72 × 1,093.12
4. Step 4: Simplify right side
   2,824.80x = 4,629,057.13
5. Step 5: Solve for x
   x = 4,629,057.13/2,824.80
6. Step 6: Final answer
   x = 1,638.72