Finding the Fourth Proportional to 2,062.40, 3,078.62 and 1,910.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,062.40 : 3,078.62 = 1,910.12 : x
2. Step 2: Convert to fraction form
   2,062.40/3,078.62 = 1,910.12/x
3. Step 3: Cross multiply
   2,062.40x = 3,078.62 × 1,910.12
4. Step 4: Simplify right side
   2,062.40x = 5,880,533.63
5. Step 5: Solve for x
   x = 5,880,533.63/2,062.40
6. Step 6: Final answer
   x = 2,851.31