Finding the Fourth Proportional to 2,403.48, 3,603.30 and 1,105.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,403.48 : 3,603.30 = 1,105.86 : x
2. Step 2: Convert to fraction form
   2,403.48/3,603.30 = 1,105.86/x
3. Step 3: Cross multiply
   2,403.48x = 3,603.30 × 1,105.86
4. Step 4: Simplify right side
   2,403.48x = 3,984,745.34
5. Step 5: Solve for x
   x = 3,984,745.34/2,403.48
6. Step 6: Final answer
   x = 1,657.91