Finding the Fourth Proportional to 2,446.78, 3,669.15 and 802.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,446.78 : 3,669.15 = 802.90 : x
2. Step 2: Convert to fraction form
   2,446.78/3,669.15 = 802.90/x
3. Step 3: Cross multiply
   2,446.78x = 3,669.15 × 802.90
4. Step 4: Simplify right side
   2,446.78x = 2,945,960.54
5. Step 5: Solve for x
   x = 2,945,960.54/2,446.78
6. Step 6: Final answer
   x = 1,204.02