Finding the Fourth Proportional to 1,463.53, 2,019.39 and 991.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,463.53 : 2,019.39 = 991.81 : x
2. Step 2: Convert to fraction form
   1,463.53/2,019.39 = 991.81/x
3. Step 3: Cross multiply
   1,463.53x = 2,019.39 × 991.81
4. Step 4: Simplify right side
   1,463.53x = 2,002,851.20
5. Step 5: Solve for x
   x = 2,002,851.20/1,463.53
6. Step 6: Final answer
   x = 1,368.51