Finding the Fourth Proportional to 1,743.84, 2,615.83 and 769.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,743.84 : 2,615.83 = 769.72 : x
2. Step 2: Convert to fraction form
   1,743.84/2,615.83 = 769.72/x
3. Step 3: Cross multiply
   1,743.84x = 2,615.83 × 769.72
4. Step 4: Simplify right side
   1,743.84x = 2,013,456.67
5. Step 5: Solve for x
   x = 2,013,456.67/1,743.84
6. Step 6: Final answer
   x = 1,154.61