Finding the Fourth Proportional to 5,127.75, 7,692.71 and 1,665.27

Step by Step Solution

1. Step 1: Write the proportion equation
   5,127.75 : 7,692.71 = 1,665.27 : x
2. Step 2: Convert to fraction form
   5,127.75/7,692.71 = 1,665.27/x
3. Step 3: Cross multiply
   5,127.75x = 7,692.71 × 1,665.27
4. Step 4: Simplify right side
   5,127.75x = 12,810,430.86
5. Step 5: Solve for x
   x = 12,810,430.86/5,127.75
6. Step 6: Final answer
   x = 2,498.26