Finding the Fourth Proportional to 3,406.05, 5,109.13 and 1,065.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,406.05 : 5,109.13 = 1,065.96 : x
2. Step 2: Convert to fraction form
   3,406.05/5,109.13 = 1,065.96/x
3. Step 3: Cross multiply
   3,406.05x = 5,109.13 × 1,065.96
4. Step 4: Simplify right side
   3,406.05x = 5,446,122.89
5. Step 5: Solve for x
   x = 5,446,122.89/3,406.05
6. Step 6: Final answer
   x = 1,598.96