Finding the Fourth Proportional to 2,188.35, 3,019.93 and 1,193.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.35 : 3,019.93 = 1,193.61 : x
2. Step 2: Convert to fraction form
   2,188.35/3,019.93 = 1,193.61/x
3. Step 3: Cross multiply
   2,188.35x = 3,019.93 × 1,193.61
4. Step 4: Simplify right side
   2,188.35x = 3,604,618.65
5. Step 5: Solve for x
   x = 3,604,618.65/2,188.35
6. Step 6: Final answer
   x = 1,647.19