Finding the Fourth Proportional to 5,127.16, 7,075.83 and 2,889.22

Step by Step Solution

1. Step 1: Write the proportion equation
   5,127.16 : 7,075.83 = 2,889.22 : x
2. Step 2: Convert to fraction form
   5,127.16/7,075.83 = 2,889.22/x
3. Step 3: Cross multiply
   5,127.16x = 7,075.83 × 2,889.22
4. Step 4: Simplify right side
   5,127.16x = 20,443,629.55
5. Step 5: Solve for x
   x = 20,443,629.55/5,127.16
6. Step 6: Final answer
   x = 3,987.32