Finding the Fourth Proportional to 2,591.03, 3,884.33 and 1,129.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,591.03 : 3,884.33 = 1,129.10 : x
2. Step 2: Convert to fraction form
   2,591.03/3,884.33 = 1,129.10/x
3. Step 3: Cross multiply
   2,591.03x = 3,884.33 × 1,129.10
4. Step 4: Simplify right side
   2,591.03x = 4,385,771.94
5. Step 5: Solve for x
   x = 4,385,771.94/2,591.03
6. Step 6: Final answer
   x = 1,692.68