Finding the Fourth Proportional to 2,722.37, 4,083.98 and 1,078.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722.37 : 4,083.98 = 1,078.88 : x
2. Step 2: Convert to fraction form
   2,722.37/4,083.98 = 1,078.88/x
3. Step 3: Cross multiply
   2,722.37x = 4,083.98 × 1,078.88
4. Step 4: Simplify right side
   2,722.37x = 4,406,098.53
5. Step 5: Solve for x
   x = 4,406,098.53/2,722.37
6. Step 6: Final answer
   x = 1,618.48