Finding the Fourth Proportional to 2,188.77, 3,020.43 and 1,194.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,188.77 : 3,020.43 = 1,194.03 : x
2. Step 2: Convert to fraction form
   2,188.77/3,020.43 = 1,194.03/x
3. Step 3: Cross multiply
   2,188.77x = 3,020.43 × 1,194.03
4. Step 4: Simplify right side
   2,188.77x = 3,606,484.03
5. Step 5: Solve for x
   x = 3,606,484.03/2,188.77
6. Step 6: Final answer
   x = 1,647.72