Finding the Fourth Proportional to 2,068.78, 3,100.02 and 1,246.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,068.78 : 3,100.02 = 1,246.12 : x
2. Step 2: Convert to fraction form
   2,068.78/3,100.02 = 1,246.12/x
3. Step 3: Cross multiply
   2,068.78x = 3,100.02 × 1,246.12
4. Step 4: Simplify right side
   2,068.78x = 3,862,996.92
5. Step 5: Solve for x
   x = 3,862,996.92/2,068.78
6. Step 6: Final answer
   x = 1,867.28