Finding the Fourth Proportional to 2,132.25, 2,942.42 and 1,188.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,132.25 : 2,942.42 = 1,188.01 : x
2. Step 2: Convert to fraction form
   2,132.25/2,942.42 = 1,188.01/x
3. Step 3: Cross multiply
   2,132.25x = 2,942.42 × 1,188.01
4. Step 4: Simplify right side
   2,132.25x = 3,495,624.38
5. Step 5: Solve for x
   x = 3,495,624.38/2,132.25
6. Step 6: Final answer
   x = 1,639.41