Finding the Fourth Proportional to 2,783.16, 3,837.57 and 2,613.66

Step by Step Solution

1. Step 1: Write the proportion equation
   2,783.16 : 3,837.57 = 2,613.66 : x
2. Step 2: Convert to fraction form
   2,783.16/3,837.57 = 2,613.66/x
3. Step 3: Cross multiply
   2,783.16x = 3,837.57 × 2,613.66
4. Step 4: Simplify right side
   2,783.16x = 10,030,103.21
5. Step 5: Solve for x
   x = 10,030,103.21/2,783.16
6. Step 6: Final answer
   x = 3,603.85