Finding the Fourth Proportional to 5,100.72, 7,038.84 and 2,862.60

Step by Step Solution

1. Step 1: Write the proportion equation
   5,100.72 : 7,038.84 = 2,862.60 : x
2. Step 2: Convert to fraction form
   5,100.72/7,038.84 = 2,862.60/x
3. Step 3: Cross multiply
   5,100.72x = 7,038.84 × 2,862.60
4. Step 4: Simplify right side
   5,100.72x = 20,149,383.38
5. Step 5: Solve for x
   x = 20,149,383.38/5,100.72
6. Step 6: Final answer
   x = 3,950.30