Finding the Fourth Proportional to 1,623.48, 2,238.52 and 1,181.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,623.48 : 2,238.52 = 1,181.56 : x
2. Step 2: Convert to fraction form
   1,623.48/2,238.52 = 1,181.56/x
3. Step 3: Cross multiply
   1,623.48x = 2,238.52 × 1,181.56
4. Step 4: Simplify right side
   1,623.48x = 2,644,945.69
5. Step 5: Solve for x
   x = 2,644,945.69/1,623.48
6. Step 6: Final answer
   x = 1,629.18