Finding the Fourth Proportional to 2,618.88, 3,615.12 and 1,623.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618.88 : 3,615.12 = 1,623.84 : x
2. Step 2: Convert to fraction form
   2,618.88/3,615.12 = 1,623.84/x
3. Step 3: Cross multiply
   2,618.88x = 3,615.12 × 1,623.84
4. Step 4: Simplify right side
   2,618.88x = 5,870,376.46
5. Step 5: Solve for x
   x = 5,870,376.46/2,618.88
6. Step 6: Final answer
   x = 2,241.56