Finding the Fourth Proportional to 2,061.23, 2,844.71 and 1,222.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.23 : 2,844.71 = 1,222.07 : x
2. Step 2: Convert to fraction form
   2,061.23/2,844.71 = 1,222.07/x
3. Step 3: Cross multiply
   2,061.23x = 2,844.71 × 1,222.07
4. Step 4: Simplify right side
   2,061.23x = 3,476,444.92
5. Step 5: Solve for x
   x = 3,476,444.92/2,061.23
6. Step 6: Final answer
   x = 1,686.59