Finding the Fourth Proportional to 1,557.36, 2,323.89 and 1,419.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,557.36 : 2,323.89 = 1,419.36 : x
2. Step 2: Convert to fraction form
   1,557.36/2,323.89 = 1,419.36/x
3. Step 3: Cross multiply
   1,557.36x = 2,323.89 × 1,419.36
4. Step 4: Simplify right side
   1,557.36x = 3,298,436.51
5. Step 5: Solve for x
   x = 3,298,436.51/1,557.36
6. Step 6: Final answer
   x = 2,117.97