Finding the Fourth Proportional to 1,771.26, 2,443.71 and 1,142.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,771.26 : 2,443.71 = 1,142.16 : x
2. Step 2: Convert to fraction form
   1,771.26/2,443.71 = 1,142.16/x
3. Step 3: Cross multiply
   1,771.26x = 2,443.71 × 1,142.16
4. Step 4: Simplify right side
   1,771.26x = 2,791,107.81
5. Step 5: Solve for x
   x = 2,791,107.81/1,771.26
6. Step 6: Final answer
   x = 1,575.78