Finding the Fourth Proportional to 2,132.50, 2,942.88 and 1,304.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,132.50 : 2,942.88 = 1,304.50 : x
2. Step 2: Convert to fraction form
   2,132.50/2,942.88 = 1,304.50/x
3. Step 3: Cross multiply
   2,132.50x = 2,942.88 × 1,304.50
4. Step 4: Simplify right side
   2,132.50x = 3,838,986.96
5. Step 5: Solve for x
   x = 3,838,986.96/2,132.50
6. Step 6: Final answer
   x = 1,800.23