Finding the Fourth Proportional to 2,869.91, 4,304.71 and 761.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,869.91 : 4,304.71 = 761.48 : x
2. Step 2: Convert to fraction form
   2,869.91/4,304.71 = 761.48/x
3. Step 3: Cross multiply
   2,869.91x = 4,304.71 × 761.48
4. Step 4: Simplify right side
   2,869.91x = 3,277,950.57
5. Step 5: Solve for x
   x = 3,277,950.57/2,869.91
6. Step 6: Final answer
   x = 1,142.18