Finding the Fourth Proportional to 2,802.78, 4,201.56 and 952.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,802.78 : 4,201.56 = 952.62 : x
2. Step 2: Convert to fraction form
   2,802.78/4,201.56 = 952.62/x
3. Step 3: Cross multiply
   2,802.78x = 4,201.56 × 952.62
4. Step 4: Simplify right side
   2,802.78x = 4,002,490.09
5. Step 5: Solve for x
   x = 4,002,490.09/2,802.78
6. Step 6: Final answer
   x = 1,428.04