Finding the Fourth Proportional to 3,666.34, 5,499.42 and 1,069.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,666.34 : 5,499.42 = 1,069.30 : x
2. Step 2: Convert to fraction form
   3,666.34/5,499.42 = 1,069.30/x
3. Step 3: Cross multiply
   3,666.34x = 5,499.42 × 1,069.30
4. Step 4: Simplify right side
   3,666.34x = 5,880,529.81
5. Step 5: Solve for x
   x = 5,880,529.81/3,666.34
6. Step 6: Final answer
   x = 1,603.92