Finding the Fourth Proportional to 2,132.49, 2,942.83 and 1,188.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,132.49 : 2,942.83 = 1,188.29 : x
2. Step 2: Convert to fraction form
   2,132.49/2,942.83 = 1,188.29/x
3. Step 3: Cross multiply
   2,132.49x = 2,942.83 × 1,188.29
4. Step 4: Simplify right side
   2,132.49x = 3,496,935.46
5. Step 5: Solve for x
   x = 3,496,935.46/2,132.49
6. Step 6: Final answer
   x = 1,639.84