Finding the Fourth Proportional to 2,763.86, 4,147.23 and 1,224.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,763.86 : 4,147.23 = 1,224.50 : x
2. Step 2: Convert to fraction form
   2,763.86/4,147.23 = 1,224.50/x
3. Step 3: Cross multiply
   2,763.86x = 4,147.23 × 1,224.50
4. Step 4: Simplify right side
   2,763.86x = 5,078,283.14
5. Step 5: Solve for x
   x = 5,078,283.14/2,763.86
6. Step 6: Final answer
   x = 1,837.39