Finding the Fourth Proportional to 3,057.64, 4,587.41 and 1,109.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,057.64 : 4,587.41 = 1,109.86 : x
2. Step 2: Convert to fraction form
   3,057.64/4,587.41 = 1,109.86/x
3. Step 3: Cross multiply
   3,057.64x = 4,587.41 × 1,109.86
4. Step 4: Simplify right side
   3,057.64x = 5,091,382.86
5. Step 5: Solve for x
   x = 5,091,382.86/3,057.64
6. Step 6: Final answer
   x = 1,665.13