Finding the Fourth Proportional to 2,590.38, 3,884.94 and 1,291.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590.38 : 3,884.94 = 1,291.55 : x
2. Step 2: Convert to fraction form
   2,590.38/3,884.94 = 1,291.55/x
3. Step 3: Cross multiply
   2,590.38x = 3,884.94 × 1,291.55
4. Step 4: Simplify right side
   2,590.38x = 5,017,574.83
5. Step 5: Solve for x
   x = 5,017,574.83/2,590.38
6. Step 6: Final answer
   x = 1,937.00