Finding the Fourth Proportional to 1,031.56, 1,422.46 and 736.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,031.56 : 1,422.46 = 736.72 : x
2. Step 2: Convert to fraction form
   1,031.56/1,422.46 = 736.72/x
3. Step 3: Cross multiply
   1,031.56x = 1,422.46 × 736.72
4. Step 4: Simplify right side
   1,031.56x = 1,047,954.73
5. Step 5: Solve for x
   x = 1,047,954.73/1,031.56
6. Step 6: Final answer
   x = 1,015.89