Finding the Fourth Proportional to 2,026.03, 3,039.15 and 639.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,026.03 : 3,039.15 = 639.33 : x
2. Step 2: Convert to fraction form
   2,026.03/3,039.15 = 639.33/x
3. Step 3: Cross multiply
   2,026.03x = 3,039.15 × 639.33
4. Step 4: Simplify right side
   2,026.03x = 1,943,019.77
5. Step 5: Solve for x
   x = 1,943,019.77/2,026.03
6. Step 6: Final answer
   x = 959.03