Finding the Fourth Proportional to 2,610.18, 3,914.52 and 806.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.18 : 3,914.52 = 806.28 : x
2. Step 2: Convert to fraction form
   2,610.18/3,914.52 = 806.28/x
3. Step 3: Cross multiply
   2,610.18x = 3,914.52 × 806.28
4. Step 4: Simplify right side
   2,610.18x = 3,156,199.19
5. Step 5: Solve for x
   x = 3,156,199.19/2,610.18
6. Step 6: Final answer
   x = 1,209.19