Finding the Fourth Proportional to 2,953.42, 4,431.75 and 1,105.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,953.42 : 4,431.75 = 1,105.81 : x
2. Step 2: Convert to fraction form
   2,953.42/4,431.75 = 1,105.81/x
3. Step 3: Cross multiply
   2,953.42x = 4,431.75 × 1,105.81
4. Step 4: Simplify right side
   2,953.42x = 4,900,673.47
5. Step 5: Solve for x
   x = 4,900,673.47/2,953.42
6. Step 6: Final answer
   x = 1,659.32