Finding the Fourth Proportional to 2,622.58, 3,620.69 and 1,628.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.58 : 3,620.69 = 1,628.40 : x
2. Step 2: Convert to fraction form
   2,622.58/3,620.69 = 1,628.40/x
3. Step 3: Cross multiply
   2,622.58x = 3,620.69 × 1,628.40
4. Step 4: Simplify right side
   2,622.58x = 5,895,931.60
5. Step 5: Solve for x
   x = 5,895,931.60/2,622.58
6. Step 6: Final answer
   x = 2,248.14