Finding the Fourth Proportional to 3,665.75, 5,499.54 and 1,068.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.75 : 5,499.54 = 1,068.69 : x
2. Step 2: Convert to fraction form
   3,665.75/5,499.54 = 1,068.69/x
3. Step 3: Cross multiply
   3,665.75x = 5,499.54 × 1,068.69
4. Step 4: Simplify right side
   3,665.75x = 5,877,298.06
5. Step 5: Solve for x
   x = 5,877,298.06/3,665.75
6. Step 6: Final answer
   x = 1,603.30