Finding the Fourth Proportional to 2,419.86, 3,337.42 and 1,623.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,419.86 : 3,337.42 = 1,623.31 : x
2. Step 2: Convert to fraction form
   2,419.86/3,337.42 = 1,623.31/x
3. Step 3: Cross multiply
   2,419.86x = 3,337.42 × 1,623.31
4. Step 4: Simplify right side
   2,419.86x = 5,417,667.26
5. Step 5: Solve for x
   x = 5,417,667.26/2,419.86
6. Step 6: Final answer
   x = 2,238.83