Finding the Fourth Proportional to 1,555.43, 2,146.25 and 892.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,555.43 : 2,146.25 = 892.13 : x
2. Step 2: Convert to fraction form
   1,555.43/2,146.25 = 892.13/x
3. Step 3: Cross multiply
   1,555.43x = 2,146.25 × 892.13
4. Step 4: Simplify right side
   1,555.43x = 1,914,718.82
5. Step 5: Solve for x
   x = 1,914,718.82/1,555.43
6. Step 6: Final answer
   x = 1,230.99