Finding the Fourth Proportional to 2,062.07, 2,845.54 and 1,222.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,062.07 : 2,845.54 = 1,222.86 : x
2. Step 2: Convert to fraction form
   2,062.07/2,845.54 = 1,222.86/x
3. Step 3: Cross multiply
   2,062.07x = 2,845.54 × 1,222.86
4. Step 4: Simplify right side
   2,062.07x = 3,479,679.76
5. Step 5: Solve for x
   x = 3,479,679.76/2,062.07
6. Step 6: Final answer
   x = 1,687.47