Finding the Fourth Proportional to 3,111.03, 4,285.71 and 2,613.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111.03 : 4,285.71 = 2,613.69 : x
2. Step 2: Convert to fraction form
   3,111.03/4,285.71 = 2,613.69/x
3. Step 3: Cross multiply
   3,111.03x = 4,285.71 × 2,613.69
4. Step 4: Simplify right side
   3,111.03x = 11,201,517.37
5. Step 5: Solve for x
   x = 11,201,517.37/3,111.03
6. Step 6: Final answer
   x = 3,600.58