Finding the Fourth Proportional to 2,134.09, 2,945.01 and 1,189.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,134.09 : 2,945.01 = 1,189.86 : x
2. Step 2: Convert to fraction form
   2,134.09/2,945.01 = 1,189.86/x
3. Step 3: Cross multiply
   2,134.09x = 2,945.01 × 1,189.86
4. Step 4: Simplify right side
   2,134.09x = 3,504,149.60
5. Step 5: Solve for x
   x = 3,504,149.60/2,134.09
6. Step 6: Final answer
   x = 1,641.99