Finding the Fourth Proportional to 1,889.00, 2,597.57 and 1,639.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,889.00 : 2,597.57 = 1,639.89 : x
2. Step 2: Convert to fraction form
   1,889.00/2,597.57 = 1,639.89/x
3. Step 3: Cross multiply
   1,889.00x = 2,597.57 × 1,639.89
4. Step 4: Simplify right side
   1,889.00x = 4,259,720.87
5. Step 5: Solve for x
   x = 4,259,720.87/1,889.00
6. Step 6: Final answer
   x = 2,255.02