Finding the Fourth Proportional to 3,705.81, 5,557.74 and 1,072.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,705.81 : 5,557.74 = 1,072.69 : x
2. Step 2: Convert to fraction form
   3,705.81/5,557.74 = 1,072.69/x
3. Step 3: Cross multiply
   3,705.81x = 5,557.74 × 1,072.69
4. Step 4: Simplify right side
   3,705.81x = 5,961,732.12
5. Step 5: Solve for x
   x = 5,961,732.12/3,705.81
6. Step 6: Final answer
   x = 1,608.75