Finding the Fourth Proportional to 2,628.72, 3,627.62 and 1,433.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,628.72 : 3,627.62 = 1,433.78 : x
2. Step 2: Convert to fraction form
   2,628.72/3,627.62 = 1,433.78/x
3. Step 3: Cross multiply
   2,628.72x = 3,627.62 × 1,433.78
4. Step 4: Simplify right side
   2,628.72x = 5,201,209.00
5. Step 5: Solve for x
   x = 5,201,209.00/2,628.72
6. Step 6: Final answer
   x = 1,978.61