Finding the Fourth Proportional to 2,019.32, 3,031.70 and 1,046.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.32 : 3,031.70 = 1,046.20 : x
2. Step 2: Convert to fraction form
   2,019.32/3,031.70 = 1,046.20/x
3. Step 3: Cross multiply
   2,019.32x = 3,031.70 × 1,046.20
4. Step 4: Simplify right side
   2,019.32x = 3,171,764.54
5. Step 5: Solve for x
   x = 3,171,764.54/2,019.32
6. Step 6: Final answer
   x = 1,570.71