Finding the Fourth Proportional to 3,665.71, 5,499.50 and 1,068.64

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.71 : 5,499.50 = 1,068.64 : x
2. Step 2: Convert to fraction form
   3,665.71/5,499.50 = 1,068.64/x
3. Step 3: Cross multiply
   3,665.71x = 5,499.50 × 1,068.64
4. Step 4: Simplify right side
   3,665.71x = 5,876,952.84
5. Step 5: Solve for x
   x = 5,876,952.84/3,665.71
6. Step 6: Final answer
   x = 1,603.23