Finding the Fourth Proportional to 1,369.37, 1,889.42 and 872.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369.37 : 1,889.42 = 872.73 : x
2. Step 2: Convert to fraction form
   1,369.37/1,889.42 = 872.73/x
3. Step 3: Cross multiply
   1,369.37x = 1,889.42 × 872.73
4. Step 4: Simplify right side
   1,369.37x = 1,648,949.15
5. Step 5: Solve for x
   x = 1,648,949.15/1,369.37
6. Step 6: Final answer
   x = 1,204.16