Finding the Fourth Proportional to 2,008.07, 3,005.36 and 1,931.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,008.07 : 3,005.36 = 1,931.39 : x
2. Step 2: Convert to fraction form
   2,008.07/3,005.36 = 1,931.39/x
3. Step 3: Cross multiply
   2,008.07x = 3,005.36 × 1,931.39
4. Step 4: Simplify right side
   2,008.07x = 5,804,512.59
5. Step 5: Solve for x
   x = 5,804,512.59/2,008.07
6. Step 6: Final answer
   x = 2,890.59