Finding the Fourth Proportional to 2,938.82, 4,397.93 and 2,106.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,938.82 : 4,397.93 = 2,106.80 : x
2. Step 2: Convert to fraction form
   2,938.82/4,397.93 = 2,106.80/x
3. Step 3: Cross multiply
   2,938.82x = 4,397.93 × 2,106.80
4. Step 4: Simplify right side
   2,938.82x = 9,265,570.89
5. Step 5: Solve for x
   x = 9,265,570.89/2,938.82
6. Step 6: Final answer
   x = 3,152.82