Finding the Fourth Proportional to 2,019.39, 3,030.48 and 1,326.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.39 : 3,030.48 = 1,326.39 : x
2. Step 2: Convert to fraction form
   2,019.39/3,030.48 = 1,326.39/x
3. Step 3: Cross multiply
   2,019.39x = 3,030.48 × 1,326.39
4. Step 4: Simplify right side
   2,019.39x = 4,019,598.37
5. Step 5: Solve for x
   x = 4,019,598.37/2,019.39
6. Step 6: Final answer
   x = 1,990.50