Finding the Fourth Proportional to 2,132.03, 2,942.25 and 1,187.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,132.03 : 2,942.25 = 1,187.89 : x
2. Step 2: Convert to fraction form
   2,132.03/2,942.25 = 1,187.89/x
3. Step 3: Cross multiply
   2,132.03x = 2,942.25 × 1,187.89
4. Step 4: Simplify right side
   2,132.03x = 3,495,069.35
5. Step 5: Solve for x
   x = 3,495,069.35/2,132.03
6. Step 6: Final answer
   x = 1,639.32