Finding the Fourth Proportional to 3,666.96, 5,499.86 and 1,069.29

Step by Step Solution

1. Step 1: Write the proportion equation
   3,666.96 : 5,499.86 = 1,069.29 : x
2. Step 2: Convert to fraction form
   3,666.96/5,499.86 = 1,069.29/x
3. Step 3: Cross multiply
   3,666.96x = 5,499.86 × 1,069.29
4. Step 4: Simplify right side
   3,666.96x = 5,880,939.95
5. Step 5: Solve for x
   x = 5,880,939.95/3,666.96
6. Step 6: Final answer
   x = 1,603.76