Finding the Fourth Proportional to 2,615.09, 3,919.46 and 1,152.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615.09 : 3,919.46 = 1,152.63 : x
2. Step 2: Convert to fraction form
   2,615.09/3,919.46 = 1,152.63/x
3. Step 3: Cross multiply
   2,615.09x = 3,919.46 × 1,152.63
4. Step 4: Simplify right side
   2,615.09x = 4,517,681.42
5. Step 5: Solve for x
   x = 4,517,681.42/2,615.09
6. Step 6: Final answer
   x = 1,727.55