Finding the Fourth Proportional to 2,105.69, 3,156.48 and 1,009.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.69 : 3,156.48 = 1,009.44 : x
2. Step 2: Convert to fraction form
   2,105.69/3,156.48 = 1,009.44/x
3. Step 3: Cross multiply
   2,105.69x = 3,156.48 × 1,009.44
4. Step 4: Simplify right side
   2,105.69x = 3,186,277.17
5. Step 5: Solve for x
   x = 3,186,277.17/2,105.69
6. Step 6: Final answer
   x = 1,513.18