Finding the Fourth Proportional to 2,073.24, 3,104.73 and 1,290.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.24 : 3,104.73 = 1,290.78 : x
2. Step 2: Convert to fraction form
   2,073.24/3,104.73 = 1,290.78/x
3. Step 3: Cross multiply
   2,073.24x = 3,104.73 × 1,290.78
4. Step 4: Simplify right side
   2,073.24x = 4,007,523.39
5. Step 5: Solve for x
   x = 4,007,523.39/2,073.24
6. Step 6: Final answer
   x = 1,932.98