Finding the Fourth Proportional to 1,464.57, 2,018.70 and 903.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,464.57 : 2,018.70 = 903.78 : x
2. Step 2: Convert to fraction form
   1,464.57/2,018.70 = 903.78/x
3. Step 3: Cross multiply
   1,464.57x = 2,018.70 × 903.78
4. Step 4: Simplify right side
   1,464.57x = 1,824,460.69
5. Step 5: Solve for x
   x = 1,824,460.69/1,464.57
6. Step 6: Final answer
   x = 1,245.73