Finding the Fourth Proportional to 2,404.90, 3,606.81 and 1,105.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,404.90 : 3,606.81 = 1,105.12 : x
2. Step 2: Convert to fraction form
   2,404.90/3,606.81 = 1,105.12/x
3. Step 3: Cross multiply
   2,404.90x = 3,606.81 × 1,105.12
4. Step 4: Simplify right side
   2,404.90x = 3,985,957.87
5. Step 5: Solve for x
   x = 3,985,957.87/2,404.90
6. Step 6: Final answer
   x = 1,657.43