Finding the Fourth Proportional to 3,105.59, 4,656.90 and 1,129.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,105.59 : 4,656.90 = 1,129.82 : x
2. Step 2: Convert to fraction form
   3,105.59/4,656.90 = 1,129.82/x
3. Step 3: Cross multiply
   3,105.59x = 4,656.90 × 1,129.82
4. Step 4: Simplify right side
   3,105.59x = 5,261,439.71
5. Step 5: Solve for x
   x = 5,261,439.71/3,105.59
6. Step 6: Final answer
   x = 1,694.19