Finding the Fourth Proportional to 2,628.89, 3,628.28 and 1,580.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628.89 : 3,628.28 = 1,580.95 : x
2. Step 2: Convert to fraction form
   2,628.89/3,628.28 = 1,580.95/x
3. Step 3: Cross multiply
   2,628.89x = 3,628.28 × 1,580.95
4. Step 4: Simplify right side
   2,628.89x = 5,736,103.22
5. Step 5: Solve for x
   x = 5,736,103.22/2,628.89
6. Step 6: Final answer
   x = 2,181.95