Finding the Fourth Proportional to 1,555.34, 2,146.46 and 892.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,555.34 : 2,146.46 = 892.17 : x
2. Step 2: Convert to fraction form
   1,555.34/2,146.46 = 892.17/x
3. Step 3: Cross multiply
   1,555.34x = 2,146.46 × 892.17
4. Step 4: Simplify right side
   1,555.34x = 1,915,002.76
5. Step 5: Solve for x
   x = 1,915,002.76/1,555.34
6. Step 6: Final answer
   x = 1,231.25