Finding the Fourth Proportional to 1,463.55, 2,019.70 and 903.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,463.55 : 2,019.70 = 903.89 : x
2. Step 2: Convert to fraction form
   1,463.55/2,019.70 = 903.89/x
3. Step 3: Cross multiply
   1,463.55x = 2,019.70 × 903.89
4. Step 4: Simplify right side
   1,463.55x = 1,825,588.89
5. Step 5: Solve for x
   x = 1,825,588.89/1,463.55
6. Step 6: Final answer
   x = 1,247.37