Finding the Fourth Proportional to 2,132.31, 2,942.02 and 1,281.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,132.31 : 2,942.02 = 1,281.81 : x
2. Step 2: Convert to fraction form
   2,132.31/2,942.02 = 1,281.81/x
3. Step 3: Cross multiply
   2,132.31x = 2,942.02 × 1,281.81
4. Step 4: Simplify right side
   2,132.31x = 3,771,107.45
5. Step 5: Solve for x
   x = 3,771,107.45/2,132.31
6. Step 6: Final answer
   x = 1,768.55