Finding the Fourth Proportional to 7,172.25, 10,757.16 and 1,907.34

Step by Step Solution

1. Step 1: Write the proportion equation
   7,172.25 : 10,757.16 = 1,907.34 : x
2. Step 2: Convert to fraction form
   7,172.25/10,757.16 = 1,907.34/x
3. Step 3: Cross multiply
   7,172.25x = 10,757.16 × 1,907.34
4. Step 4: Simplify right side
   7,172.25x = 20,517,561.55
5. Step 5: Solve for x
   x = 20,517,561.55/7,172.25
6. Step 6: Final answer
   x = 2,860.69