Finding the Fourth Proportional to 2,443.83, 3,664.67 and 777.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.83 : 3,664.67 = 777.48 : x
2. Step 2: Convert to fraction form
   2,443.83/3,664.67 = 777.48/x
3. Step 3: Cross multiply
   2,443.83x = 3,664.67 × 777.48
4. Step 4: Simplify right side
   2,443.83x = 2,849,203.74
5. Step 5: Solve for x
   x = 2,849,203.74/2,443.83
6. Step 6: Final answer
   x = 1,165.88