Finding the Fourth Proportional to 3,651.05, 5,475.81 and 1,053.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,651.05 : 5,475.81 = 1,053.38 : x
2. Step 2: Convert to fraction form
   3,651.05/5,475.81 = 1,053.38/x
3. Step 3: Cross multiply
   3,651.05x = 5,475.81 × 1,053.38
4. Step 4: Simplify right side
   3,651.05x = 5,768,077.41
5. Step 5: Solve for x
   x = 5,768,077.41/3,651.05
6. Step 6: Final answer
   x = 1,579.84