Finding the Fourth Proportional to 1,644.42, 2,268.37 and 1,014.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,644.42 : 2,268.37 = 1,014.78 : x
2. Step 2: Convert to fraction form
   1,644.42/2,268.37 = 1,014.78/x
3. Step 3: Cross multiply
   1,644.42x = 2,268.37 × 1,014.78
4. Step 4: Simplify right side
   1,644.42x = 2,301,896.51
5. Step 5: Solve for x
   x = 2,301,896.51/1,644.42
6. Step 6: Final answer
   x = 1,399.82