Finding the Fourth Proportional to 2,485.56, 3,434.40 and 2,043.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.56 : 3,434.40 = 2,043.12 : x
2. Step 2: Convert to fraction form
   2,485.56/3,434.40 = 2,043.12/x
3. Step 3: Cross multiply
   2,485.56x = 3,434.40 × 2,043.12
4. Step 4: Simplify right side
   2,485.56x = 7,016,891.33
5. Step 5: Solve for x
   x = 7,016,891.33/2,485.56
6. Step 6: Final answer
   x = 2,823.06