Finding the Fourth Proportional to 2,188.71, 3,020.37 and 1,193.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.71 : 3,020.37 = 1,193.96 : x
2. Step 2: Convert to fraction form
   2,188.71/3,020.37 = 1,193.96/x
3. Step 3: Cross multiply
   2,188.71x = 3,020.37 × 1,193.96
4. Step 4: Simplify right side
   2,188.71x = 3,606,185.86
5. Step 5: Solve for x
   x = 3,606,185.86/2,188.71
6. Step 6: Final answer
   x = 1,647.63