Finding the Fourth Proportional to 2,628.96, 3,627.91 and 1,433.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628.96 : 3,627.91 = 1,433.89 : x
2. Step 2: Convert to fraction form
   2,628.96/3,627.91 = 1,433.89/x
3. Step 3: Cross multiply
   2,628.96x = 3,627.91 × 1,433.89
4. Step 4: Simplify right side
   2,628.96x = 5,202,023.87
5. Step 5: Solve for x
   x = 5,202,023.87/2,628.96
6. Step 6: Final answer
   x = 1,978.74