Finding the Fourth Proportional to 2,619.73, 3,615.90 and 1,624.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,619.73 : 3,615.90 = 1,624.42 : x
2. Step 2: Convert to fraction form
   2,619.73/3,615.90 = 1,624.42/x
3. Step 3: Cross multiply
   2,619.73x = 3,615.90 × 1,624.42
4. Step 4: Simplify right side
   2,619.73x = 5,873,740.28
5. Step 5: Solve for x
   x = 5,873,740.28/2,619.73
6. Step 6: Final answer
   x = 2,242.12