Finding the Fourth Proportional to 2,940.78, 4,413.52 and 1,298.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,940.78 : 4,413.52 = 1,298.52 : x
2. Step 2: Convert to fraction form
   2,940.78/4,413.52 = 1,298.52/x
3. Step 3: Cross multiply
   2,940.78x = 4,413.52 × 1,298.52
4. Step 4: Simplify right side
   2,940.78x = 5,731,043.99
5. Step 5: Solve for x
   x = 5,731,043.99/2,940.78
6. Step 6: Final answer
   x = 1,948.82