Finding the Fourth Proportional to 2,591.24, 3,885.82 and 1,129.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.24 : 3,885.82 = 1,129.36 : x
2. Step 2: Convert to fraction form
   2,591.24/3,885.82 = 1,129.36/x
3. Step 3: Cross multiply
   2,591.24x = 3,885.82 × 1,129.36
4. Step 4: Simplify right side
   2,591.24x = 4,388,490.78
5. Step 5: Solve for x
   x = 4,388,490.78/2,591.24
6. Step 6: Final answer
   x = 1,693.59