Finding the Fourth Proportional to 2,606.22, 3,910.91 and 1,046.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.22 : 3,910.91 = 1,046.57 : x
2. Step 2: Convert to fraction form
   2,606.22/3,910.91 = 1,046.57/x
3. Step 3: Cross multiply
   2,606.22x = 3,910.91 × 1,046.57
4. Step 4: Simplify right side
   2,606.22x = 4,093,016.29
5. Step 5: Solve for x
   x = 4,093,016.29/2,606.22
6. Step 6: Final answer
   x = 1,570.48