Finding the Fourth Proportional to 1,647.45, 2,468.69 and 722.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,647.45 : 2,468.69 = 722.49 : x
2. Step 2: Convert to fraction form
   1,647.45/2,468.69 = 722.49/x
3. Step 3: Cross multiply
   1,647.45x = 2,468.69 × 722.49
4. Step 4: Simplify right side
   1,647.45x = 1,783,600.23
5. Step 5: Solve for x
   x = 1,783,600.23/1,647.45
6. Step 6: Final answer
   x = 1,082.64