Finding the Fourth Proportional to 2,117.94, 3,173.22 and 1,144.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,117.94 : 3,173.22 = 1,144.70 : x
2. Step 2: Convert to fraction form
   2,117.94/3,173.22 = 1,144.70/x
3. Step 3: Cross multiply
   2,117.94x = 3,173.22 × 1,144.70
4. Step 4: Simplify right side
   2,117.94x = 3,632,384.93
5. Step 5: Solve for x
   x = 3,632,384.93/2,117.94
6. Step 6: Final answer
   x = 1,715.06