Finding the Fourth Proportional to 3,666.29, 5,500.34 and 1,069.23

Step by Step Solution

1. Step 1: Write the proportion equation
   3,666.29 : 5,500.34 = 1,069.23 : x
2. Step 2: Convert to fraction form
   3,666.29/5,500.34 = 1,069.23/x
3. Step 3: Cross multiply
   3,666.29x = 5,500.34 × 1,069.23
4. Step 4: Simplify right side
   3,666.29x = 5,881,123.19
5. Step 5: Solve for x
   x = 5,881,123.19/3,666.29
6. Step 6: Final answer
   x = 1,604.11