Finding the Fourth Proportional to 1,557.48, 2,327.31 and 1,185.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,557.48 : 2,327.31 = 1,185.24 : x
2. Step 2: Convert to fraction form
   1,557.48/2,327.31 = 1,185.24/x
3. Step 3: Cross multiply
   1,557.48x = 2,327.31 × 1,185.24
4. Step 4: Simplify right side
   1,557.48x = 2,758,420.90
5. Step 5: Solve for x
   x = 2,758,420.90/1,557.48
6. Step 6: Final answer
   x = 1,771.08