Finding the Fourth Proportional to 2,048.21, 3,073.17 and 1,390.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,048.21 : 3,073.17 = 1,390.82 : x
2. Step 2: Convert to fraction form
   2,048.21/3,073.17 = 1,390.82/x
3. Step 3: Cross multiply
   2,048.21x = 3,073.17 × 1,390.82
4. Step 4: Simplify right side
   2,048.21x = 4,274,210.93
5. Step 5: Solve for x
   x = 4,274,210.93/2,048.21
6. Step 6: Final answer
   x = 2,086.81