Finding the Fourth Proportional to 3,663.36, 5,495.58 and 1,066.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663.36 : 5,495.58 = 1,066.50 : x
2. Step 2: Convert to fraction form
   3,663.36/5,495.58 = 1,066.50/x
3. Step 3: Cross multiply
   3,663.36x = 5,495.58 × 1,066.50
4. Step 4: Simplify right side
   3,663.36x = 5,861,036.07
5. Step 5: Solve for x
   x = 5,861,036.07/3,663.36
6. Step 6: Final answer
   x = 1,599.91