Finding the Fourth Proportional to 3,665.12, 5,498.56 and 1,356.64

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.12 : 5,498.56 = 1,356.64 : x
2. Step 2: Convert to fraction form
   3,665.12/5,498.56 = 1,356.64/x
3. Step 3: Cross multiply
   3,665.12x = 5,498.56 × 1,356.64
4. Step 4: Simplify right side
   3,665.12x = 7,459,566.44
5. Step 5: Solve for x
   x = 7,459,566.44/3,665.12
6. Step 6: Final answer
   x = 2,035.29