Finding the Fourth Proportional to 3,666.51, 5,499.32 and 1,069.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,666.51 : 5,499.32 = 1,069.43 : x
2. Step 2: Convert to fraction form
   3,666.51/5,499.32 = 1,069.43/x
3. Step 3: Cross multiply
   3,666.51x = 5,499.32 × 1,069.43
4. Step 4: Simplify right side
   3,666.51x = 5,881,104.94
5. Step 5: Solve for x
   x = 5,881,104.94/3,666.51
6. Step 6: Final answer
   x = 1,604.01