Finding the Fourth Proportional to 2,141.89, 2,957.12 and 1,434.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141.89 : 2,957.12 = 1,434.76 : x
2. Step 2: Convert to fraction form
   2,141.89/2,957.12 = 1,434.76/x
3. Step 3: Cross multiply
   2,141.89x = 2,957.12 × 1,434.76
4. Step 4: Simplify right side
   2,141.89x = 4,242,757.49
5. Step 5: Solve for x
   x = 4,242,757.49/2,141.89
6. Step 6: Final answer
   x = 1,980.85