Finding the Fourth Proportional to 2,406.38, 3,319.80 and 1,619.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406.38 : 3,319.80 = 1,619.06 : x
2. Step 2: Convert to fraction form
   2,406.38/3,319.80 = 1,619.06/x
3. Step 3: Cross multiply
   2,406.38x = 3,319.80 × 1,619.06
4. Step 4: Simplify right side
   2,406.38x = 5,374,955.39
5. Step 5: Solve for x
   x = 5,374,955.39/2,406.38
6. Step 6: Final answer
   x = 2,233.63