Finding the Fourth Proportional to 2,134.55, 2,945.67 and 1,190.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,134.55 : 2,945.67 = 1,190.42 : x
2. Step 2: Convert to fraction form
   2,134.55/2,945.67 = 1,190.42/x
3. Step 3: Cross multiply
   2,134.55x = 2,945.67 × 1,190.42
4. Step 4: Simplify right side
   2,134.55x = 3,506,584.48
5. Step 5: Solve for x
   x = 3,506,584.48/2,134.55
6. Step 6: Final answer
   x = 1,642.78