Finding the Fourth Proportional to 4,404.35, 6,606.42 and 1,072.61

Step by Step Solution

1. Step 1: Write the proportion equation
   4,404.35 : 6,606.42 = 1,072.61 : x
2. Step 2: Convert to fraction form
   4,404.35/6,606.42 = 1,072.61/x
3. Step 3: Cross multiply
   4,404.35x = 6,606.42 × 1,072.61
4. Step 4: Simplify right side
   4,404.35x = 7,086,079.12
5. Step 5: Solve for x
   x = 7,086,079.12/4,404.35
6. Step 6: Final answer
   x = 1,608.88