Finding the Fourth Proportional to 2,622.89, 3,623.57 and 1,958.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.89 : 3,623.57 = 1,958.60 : x
2. Step 2: Convert to fraction form
   2,622.89/3,623.57 = 1,958.60/x
3. Step 3: Cross multiply
   2,622.89x = 3,623.57 × 1,958.60
4. Step 4: Simplify right side
   2,622.89x = 7,097,096.29
5. Step 5: Solve for x
   x = 7,097,096.29/2,622.89
6. Step 6: Final answer
   x = 2,705.83