Finding the Fourth Proportional to 2,615.29, 3,923.96 and 1,153.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615.29 : 3,923.96 = 1,153.42 : x
2. Step 2: Convert to fraction form
   2,615.29/3,923.96 = 1,153.42/x
3. Step 3: Cross multiply
   2,615.29x = 3,923.96 × 1,153.42
4. Step 4: Simplify right side
   2,615.29x = 4,525,973.94
5. Step 5: Solve for x
   x = 4,525,973.94/2,615.29
6. Step 6: Final answer
   x = 1,730.58