Finding the Fourth Proportional to 1,555.83, 2,146.98 and 892.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,555.83 : 2,146.98 = 892.22 : x
2. Step 2: Convert to fraction form
   1,555.83/2,146.98 = 892.22/x
3. Step 3: Cross multiply
   1,555.83x = 2,146.98 × 892.22
4. Step 4: Simplify right side
   1,555.83x = 1,915,578.50
5. Step 5: Solve for x
   x = 1,915,578.50/1,555.83
6. Step 6: Final answer
   x = 1,231.23