Finding the Fourth Proportional to 2,189.72, 3,021.83 and 1,195.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,189.72 : 3,021.83 = 1,195.02 : x
2. Step 2: Convert to fraction form
   2,189.72/3,021.83 = 1,195.02/x
3. Step 3: Cross multiply
   2,189.72x = 3,021.83 × 1,195.02
4. Step 4: Simplify right side
   2,189.72x = 3,611,158.39
5. Step 5: Solve for x
   x = 3,611,158.39/2,189.72
6. Step 6: Final answer
   x = 1,649.14