Finding the Fourth Proportional to 2,044.21, 3,063.98 and 931.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,044.21 : 3,063.98 = 931.15 : x
2. Step 2: Convert to fraction form
   2,044.21/3,063.98 = 931.15/x
3. Step 3: Cross multiply
   2,044.21x = 3,063.98 × 931.15
4. Step 4: Simplify right side
   2,044.21x = 2,853,019.64
5. Step 5: Solve for x
   x = 2,853,019.64/2,044.21
6. Step 6: Final answer
   x = 1,395.66