Finding the Fourth Proportional to 2,061.90, 2,844.99 and 1,222.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.90 : 2,844.99 = 1,222.62 : x
2. Step 2: Convert to fraction form
   2,061.90/2,844.99 = 1,222.62/x
3. Step 3: Cross multiply
   2,061.90x = 2,844.99 × 1,222.62
4. Step 4: Simplify right side
   2,061.90x = 3,478,341.67
5. Step 5: Solve for x
   x = 3,478,341.67/2,061.90
6. Step 6: Final answer
   x = 1,686.96