Finding the Fourth Proportional to 1,436.79, 1,996.14 and 1,419.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.79 : 1,996.14 = 1,419.51 : x
2. Step 2: Convert to fraction form
   1,436.79/1,996.14 = 1,419.51/x
3. Step 3: Cross multiply
   1,436.79x = 1,996.14 × 1,419.51
4. Step 4: Simplify right side
   1,436.79x = 2,833,540.69
5. Step 5: Solve for x
   x = 2,833,540.69/1,436.79
6. Step 6: Final answer
   x = 1,972.13