Finding the Fourth Proportional to 1,674.56, 2,517.24 and 1,622.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,674.56 : 2,517.24 = 1,622.72 : x
2. Step 2: Convert to fraction form
   1,674.56/2,517.24 = 1,622.72/x
3. Step 3: Cross multiply
   1,674.56x = 2,517.24 × 1,622.72
4. Step 4: Simplify right side
   1,674.56x = 4,084,775.69
5. Step 5: Solve for x
   x = 4,084,775.69/1,674.56
6. Step 6: Final answer
   x = 2,439.31