Finding the Fourth Proportional to 2,938.88, 4,397.34 and 2,906.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,938.88 : 4,397.34 = 2,906.08 : x
2. Step 2: Convert to fraction form
   2,938.88/4,397.34 = 2,906.08/x
3. Step 3: Cross multiply
   2,938.88x = 4,397.34 × 2,906.08
4. Step 4: Simplify right side
   2,938.88x = 12,779,021.83
5. Step 5: Solve for x
   x = 12,779,021.83/2,938.88
6. Step 6: Final answer
   x = 4,348.26