Finding the Fourth Proportional to 3,172.50, 4,759.56 and 1,092.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,172.50 : 4,759.56 = 1,092.42 : x
2. Step 2: Convert to fraction form
   3,172.50/4,759.56 = 1,092.42/x
3. Step 3: Cross multiply
   3,172.50x = 4,759.56 × 1,092.42
4. Step 4: Simplify right side
   3,172.50x = 5,199,438.54
5. Step 5: Solve for x
   x = 5,199,438.54/3,172.50
6. Step 6: Final answer
   x = 1,638.91