Finding the Fourth Proportional to 5,238.72, 7,858.87 and 1,727.57

Step by Step Solution

1. Step 1: Write the proportion equation
   5,238.72 : 7,858.87 = 1,727.57 : x
2. Step 2: Convert to fraction form
   5,238.72/7,858.87 = 1,727.57/x
3. Step 3: Cross multiply
   5,238.72x = 7,858.87 × 1,727.57
4. Step 4: Simplify right side
   5,238.72x = 13,576,763.37
5. Step 5: Solve for x
   x = 13,576,763.37/5,238.72
6. Step 6: Final answer
   x = 2,591.62