Finding the Fourth Proportional to 1,112.68, 1,536.06 and 892.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.68 : 1,536.06 = 892.72 : x
2. Step 2: Convert to fraction form
   1,112.68/1,536.06 = 892.72/x
3. Step 3: Cross multiply
   1,112.68x = 1,536.06 × 892.72
4. Step 4: Simplify right side
   1,112.68x = 1,371,271.48
5. Step 5: Solve for x
   x = 1,371,271.48/1,112.68
6. Step 6: Final answer
   x = 1,232.40