Finding the Fourth Proportional to 2,952.69, 4,429.28 and 761.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,952.69 : 4,429.28 = 761.42 : x
2. Step 2: Convert to fraction form
   2,952.69/4,429.28 = 761.42/x
3. Step 3: Cross multiply
   2,952.69x = 4,429.28 × 761.42
4. Step 4: Simplify right side
   2,952.69x = 3,372,542.38
5. Step 5: Solve for x
   x = 3,372,542.38/2,952.69
6. Step 6: Final answer
   x = 1,142.19