Finding the Fourth Proportional to 2,142.79, 2,953.52 and 1,434.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142.79 : 2,953.52 = 1,434.38 : x
2. Step 2: Convert to fraction form
   2,142.79/2,953.52 = 1,434.38/x
3. Step 3: Cross multiply
   2,142.79x = 2,953.52 × 1,434.38
4. Step 4: Simplify right side
   2,142.79x = 4,236,470.02
5. Step 5: Solve for x
   x = 4,236,470.02/2,142.79
6. Step 6: Final answer
   x = 1,977.08