Finding the Fourth Proportional to 1,555.49, 2,146.52 and 892.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,555.49 : 2,146.52 = 892.58 : x
2. Step 2: Convert to fraction form
   1,555.49/2,146.52 = 892.58/x
3. Step 3: Cross multiply
   1,555.49x = 2,146.52 × 892.58
4. Step 4: Simplify right side
   1,555.49x = 1,915,932.32
5. Step 5: Solve for x
   x = 1,915,932.32/1,555.49
6. Step 6: Final answer
   x = 1,231.72