Finding the Fourth Proportional to 1,129.56, 1,557.81 and 736.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,129.56 : 1,557.81 = 736.71 : x
2. Step 2: Convert to fraction form
   1,129.56/1,557.81 = 736.71/x
3. Step 3: Cross multiply
   1,129.56x = 1,557.81 × 736.71
4. Step 4: Simplify right side
   1,129.56x = 1,147,654.21
5. Step 5: Solve for x
   x = 1,147,654.21/1,129.56
6. Step 6: Final answer
   x = 1,016.02