Finding the Fourth Proportional to 1,464.69, 2,021.79 and 905.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,464.69 : 2,021.79 = 905.59 : x
2. Step 2: Convert to fraction form
   1,464.69/2,021.79 = 905.59/x
3. Step 3: Cross multiply
   1,464.69x = 2,021.79 × 905.59
4. Step 4: Simplify right side
   1,464.69x = 1,830,912.81
5. Step 5: Solve for x
   x = 1,830,912.81/1,464.69
6. Step 6: Final answer
   x = 1,250.03