Finding the Fourth Proportional to 1,556.10, 2,147.33 and 892.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,556.10 : 2,147.33 = 892.46 : x
2. Step 2: Convert to fraction form
   1,556.10/2,147.33 = 892.46/x
3. Step 3: Cross multiply
   1,556.10x = 2,147.33 × 892.46
4. Step 4: Simplify right side
   1,556.10x = 1,916,390.93
5. Step 5: Solve for x
   x = 1,916,390.93/1,556.10
6. Step 6: Final answer
   x = 1,231.53