Finding the Fourth Proportional to 3,593.82, 5,392.02 and 1,128.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,593.82 : 5,392.02 = 1,128.78 : x
2. Step 2: Convert to fraction form
   3,593.82/5,392.02 = 1,128.78/x
3. Step 3: Cross multiply
   3,593.82x = 5,392.02 × 1,128.78
4. Step 4: Simplify right side
   3,593.82x = 6,086,404.34
5. Step 5: Solve for x
   x = 6,086,404.34/3,593.82
6. Step 6: Final answer
   x = 1,693.58