Finding the Fourth Proportional to 1,743.50, 2,615.58 and 769.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,743.50 : 2,615.58 = 769.61 : x
2. Step 2: Convert to fraction form
   1,743.50/2,615.58 = 769.61/x
3. Step 3: Cross multiply
   1,743.50x = 2,615.58 × 769.61
4. Step 4: Simplify right side
   1,743.50x = 2,012,963.45
5. Step 5: Solve for x
   x = 2,012,963.45/1,743.50
6. Step 6: Final answer
   x = 1,154.56