Finding the Fourth Proportional to 2,420.72, 3,629.73 and 1,185.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,420.72 : 3,629.73 = 1,185.47 : x
2. Step 2: Convert to fraction form
   2,420.72/3,629.73 = 1,185.47/x
3. Step 3: Cross multiply
   2,420.72x = 3,629.73 × 1,185.47
4. Step 4: Simplify right side
   2,420.72x = 4,302,936.02
5. Step 5: Solve for x
   x = 4,302,936.02/2,420.72
6. Step 6: Final answer
   x = 1,777.54