Finding the Fourth Proportional to 3,039.30, 4,560.15 and 1,091.64

Step by Step Solution

1. Step 1: Write the proportion equation
   3,039.30 : 4,560.15 = 1,091.64 : x
2. Step 2: Convert to fraction form
   3,039.30/4,560.15 = 1,091.64/x
3. Step 3: Cross multiply
   3,039.30x = 4,560.15 × 1,091.64
4. Step 4: Simplify right side
   3,039.30x = 4,978,042.15
5. Step 5: Solve for x
   x = 4,978,042.15/3,039.30
6. Step 6: Final answer
   x = 1,637.89