Finding the Fourth Proportional to 2,613.52, 3,920.42 and 1,152.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.52 : 3,920.42 = 1,152.69 : x
2. Step 2: Convert to fraction form
   2,613.52/3,920.42 = 1,152.69/x
3. Step 3: Cross multiply
   2,613.52x = 3,920.42 × 1,152.69
4. Step 4: Simplify right side
   2,613.52x = 4,519,028.93
5. Step 5: Solve for x
   x = 4,519,028.93/2,613.52
6. Step 6: Final answer
   x = 1,729.10