Finding the Fourth Proportional to 2,485.37, 3,728.42 and 754.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485.37 : 3,728.42 = 754.13 : x
2. Step 2: Convert to fraction form
   2,485.37/3,728.42 = 754.13/x
3. Step 3: Cross multiply
   2,485.37x = 3,728.42 × 754.13
4. Step 4: Simplify right side
   2,485.37x = 2,811,713.37
5. Step 5: Solve for x
   x = 2,811,713.37/2,485.37
6. Step 6: Final answer
   x = 1,131.31