Finding the Fourth Proportional to 2,522.89, 3,786.63 and 1,291.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,522.89 : 3,786.63 = 1,291.15 : x
2. Step 2: Convert to fraction form
   2,522.89/3,786.63 = 1,291.15/x
3. Step 3: Cross multiply
   2,522.89x = 3,786.63 × 1,291.15
4. Step 4: Simplify right side
   2,522.89x = 4,889,107.32
5. Step 5: Solve for x
   x = 4,889,107.32/2,522.89
6. Step 6: Final answer
   x = 1,937.90