Finding the Fourth Proportional to 2,188.07, 3,019.57 and 1,193.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.07 : 3,019.57 = 1,193.35 : x
2. Step 2: Convert to fraction form
   2,188.07/3,019.57 = 1,193.35/x
3. Step 3: Cross multiply
   2,188.07x = 3,019.57 × 1,193.35
4. Step 4: Simplify right side
   2,188.07x = 3,603,403.86
5. Step 5: Solve for x
   x = 3,603,403.86/2,188.07
6. Step 6: Final answer
   x = 1,646.84