Finding the Fourth Proportional to 2,406.92, 3,610.98 and 1,109.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,406.92 : 3,610.98 = 1,109.30 : x
2. Step 2: Convert to fraction form
   2,406.92/3,610.98 = 1,109.30/x
3. Step 3: Cross multiply
   2,406.92x = 3,610.98 × 1,109.30
4. Step 4: Simplify right side
   2,406.92x = 4,005,642.06
5. Step 5: Solve for x
   x = 4,005,642.06/2,406.92
6. Step 6: Final answer
   x = 1,664.22