Finding the Fourth Proportional to 2,076.10, 3,138.48 and 2,076.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.10 : 3,138.48 = 2,076.10 : x
2. Step 2: Convert to fraction form
   2,076.10/3,138.48 = 2,076.10/x
3. Step 3: Cross multiply
   2,076.10x = 3,138.48 × 2,076.10
4. Step 4: Simplify right side
   2,076.10x = 6,515,798.33
5. Step 5: Solve for x
   x = 6,515,798.33/2,076.10
6. Step 6: Final answer
   x = 3,138.48