Finding the Fourth Proportional to 2,131.62, 3,189.33 and 1,295.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131.62 : 3,189.33 = 1,295.70 : x
2. Step 2: Convert to fraction form
   2,131.62/3,189.33 = 1,295.70/x
3. Step 3: Cross multiply
   2,131.62x = 3,189.33 × 1,295.70
4. Step 4: Simplify right side
   2,131.62x = 4,132,414.88
5. Step 5: Solve for x
   x = 4,132,414.88/2,131.62
6. Step 6: Final answer
   x = 1,938.63