Finding the Fourth Proportional to 2,132.44, 2,942.72 and 1,188.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,132.44 : 2,942.72 = 1,188.38 : x
2. Step 2: Convert to fraction form
   2,132.44/2,942.72 = 1,188.38/x
3. Step 3: Cross multiply
   2,132.44x = 2,942.72 × 1,188.38
4. Step 4: Simplify right side
   2,132.44x = 3,497,069.59
5. Step 5: Solve for x
   x = 3,497,069.59/2,132.44
6. Step 6: Final answer
   x = 1,639.94