Finding the Fourth Proportional to 3,665.52, 5,499.12 and 1,068.36

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.52 : 5,499.12 = 1,068.36 : x
2. Step 2: Convert to fraction form
   3,665.52/5,499.12 = 1,068.36/x
3. Step 3: Cross multiply
   3,665.52x = 5,499.12 × 1,068.36
4. Step 4: Simplify right side
   3,665.52x = 5,875,039.84
5. Step 5: Solve for x
   x = 5,875,039.84/3,665.52
6. Step 6: Final answer
   x = 1,602.78