Finding the Fourth Proportional to 2,134.44, 2,945.54 and 1,190.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,134.44 : 2,945.54 = 1,190.31 : x
2. Step 2: Convert to fraction form
   2,134.44/2,945.54 = 1,190.31/x
3. Step 3: Cross multiply
   2,134.44x = 2,945.54 × 1,190.31
4. Step 4: Simplify right side
   2,134.44x = 3,506,105.72
5. Step 5: Solve for x
   x = 3,506,105.72/2,134.44
6. Step 6: Final answer
   x = 1,642.63