Finding the Fourth Proportional to 2,072.03, 3,109.55 and 1,293.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,072.03 : 3,109.55 = 1,293.17 : x
2. Step 2: Convert to fraction form
   2,072.03/3,109.55 = 1,293.17/x
3. Step 3: Cross multiply
   2,072.03x = 3,109.55 × 1,293.17
4. Step 4: Simplify right side
   2,072.03x = 4,021,154.76
5. Step 5: Solve for x
   x = 4,021,154.76/2,072.03
6. Step 6: Final answer
   x = 1,940.69