Finding the Fourth Proportional to 5,103.98, 7,043.46 and 2,865.89

Step by Step Solution

1. Step 1: Write the proportion equation
   5,103.98 : 7,043.46 = 2,865.89 : x
2. Step 2: Convert to fraction form
   5,103.98/7,043.46 = 2,865.89/x
3. Step 3: Cross multiply
   5,103.98x = 7,043.46 × 2,865.89
4. Step 4: Simplify right side
   5,103.98x = 20,185,746.36
5. Step 5: Solve for x
   x = 20,185,746.36/5,103.98
6. Step 6: Final answer
   x = 3,954.91