Finding the Fourth Proportional to 3,128.96, 4,692.53 and 1,180.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,128.96 : 4,692.53 = 1,180.71 : x
2. Step 2: Convert to fraction form
   3,128.96/4,692.53 = 1,180.71/x
3. Step 3: Cross multiply
   3,128.96x = 4,692.53 × 1,180.71
4. Step 4: Simplify right side
   3,128.96x = 5,540,520.05
5. Step 5: Solve for x
   x = 5,540,520.05/3,128.96
6. Step 6: Final answer
   x = 1,770.72