Finding the Fourth Proportional to 2,906.16, 4,358.96 and 826.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,906.16 : 4,358.96 = 826.15 : x
2. Step 2: Convert to fraction form
   2,906.16/4,358.96 = 826.15/x
3. Step 3: Cross multiply
   2,906.16x = 4,358.96 × 826.15
4. Step 4: Simplify right side
   2,906.16x = 3,601,128.88
5. Step 5: Solve for x
   x = 3,601,128.88/2,906.16
6. Step 6: Final answer
   x = 1,239.14