Finding the Fourth Proportional to 2,131.44, 2,941.42 and 1,292.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.44 : 2,941.42 = 1,292.16 : x
2. Step 2: Convert to fraction form
   2,131.44/2,941.42 = 1,292.16/x
3. Step 3: Cross multiply
   2,131.44x = 2,941.42 × 1,292.16
4. Step 4: Simplify right side
   2,131.44x = 3,800,785.27
5. Step 5: Solve for x
   x = 3,800,785.27/2,131.44
6. Step 6: Final answer
   x = 1,783.20