Finding the Fourth Proportional to 1,852.19, 2,554.91 and 1,222.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,852.19 : 2,554.91 = 1,222.73 : x
2. Step 2: Convert to fraction form
   1,852.19/2,554.91 = 1,222.73/x
3. Step 3: Cross multiply
   1,852.19x = 2,554.91 × 1,222.73
4. Step 4: Simplify right side
   1,852.19x = 3,123,946.22
5. Step 5: Solve for x
   x = 3,123,946.22/1,852.19
6. Step 6: Final answer
   x = 1,686.63