Finding the Fourth Proportional to 2,525.76, 3,785.94 and 1,291.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,525.76 : 3,785.94 = 1,291.86 : x
2. Step 2: Convert to fraction form
   2,525.76/3,785.94 = 1,291.86/x
3. Step 3: Cross multiply
   2,525.76x = 3,785.94 × 1,291.86
4. Step 4: Simplify right side
   2,525.76x = 4,890,904.45
5. Step 5: Solve for x
   x = 4,890,904.45/2,525.76
6. Step 6: Final answer
   x = 1,936.41