Finding the Fourth Proportional to 3,953.89, 5,933.19 and 2,290.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,953.89 : 5,933.19 = 2,290.15 : x
2. Step 2: Convert to fraction form
   3,953.89/5,933.19 = 2,290.15/x
3. Step 3: Cross multiply
   3,953.89x = 5,933.19 × 2,290.15
4. Step 4: Simplify right side
   3,953.89x = 13,587,895.08
5. Step 5: Solve for x
   x = 13,587,895.08/3,953.89
6. Step 6: Final answer
   x = 3,436.59