Finding the Fourth Proportional to 1,555.41, 2,146.51 and 892.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,555.41 : 2,146.51 = 892.38 : x
2. Step 2: Convert to fraction form
   1,555.41/2,146.51 = 892.38/x
3. Step 3: Cross multiply
   1,555.41x = 2,146.51 × 892.38
4. Step 4: Simplify right side
   1,555.41x = 1,915,502.59
5. Step 5: Solve for x
   x = 1,915,502.59/1,555.41
6. Step 6: Final answer
   x = 1,231.51