Finding the Fourth Proportional to 2,591.58, 3,884.94 and 1,291.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.58 : 3,884.94 = 1,291.62 : x
2. Step 2: Convert to fraction form
   2,591.58/3,884.94 = 1,291.62/x
3. Step 3: Cross multiply
   2,591.58x = 3,884.94 × 1,291.62
4. Step 4: Simplify right side
   2,591.58x = 5,017,866.20
5. Step 5: Solve for x
   x = 5,017,866.20/2,591.58
6. Step 6: Final answer
   x = 1,936.22