Finding the Fourth Proportional to 2,380.38, 3,566.80 and 1,129.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.38 : 3,566.80 = 1,129.54 : x
2. Step 2: Convert to fraction form
   2,380.38/3,566.80 = 1,129.54/x
3. Step 3: Cross multiply
   2,380.38x = 3,566.80 × 1,129.54
4. Step 4: Simplify right side
   2,380.38x = 4,028,843.27
5. Step 5: Solve for x
   x = 4,028,843.27/2,380.38
6. Step 6: Final answer
   x = 1,692.52