Finding the Fourth Proportional to 2,939.60, 4,404.54 and 2,072.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,939.60 : 4,404.54 = 2,072.10 : x
2. Step 2: Convert to fraction form
   2,939.60/4,404.54 = 2,072.10/x
3. Step 3: Cross multiply
   2,939.60x = 4,404.54 × 2,072.10
4. Step 4: Simplify right side
   2,939.60x = 9,126,647.33
5. Step 5: Solve for x
   x = 9,126,647.33/2,939.60
6. Step 6: Final answer
   x = 3,104.72