Finding the Fourth Proportional to 2,590.86, 3,880.89 and 1,933.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590.86 : 3,880.89 = 1,933.68 : x
2. Step 2: Convert to fraction form
   2,590.86/3,880.89 = 1,933.68/x
3. Step 3: Cross multiply
   2,590.86x = 3,880.89 × 1,933.68
4. Step 4: Simplify right side
   2,590.86x = 7,504,399.38
5. Step 5: Solve for x
   x = 7,504,399.38/2,590.86
6. Step 6: Final answer
   x = 2,896.49