Finding the Fourth Proportional to 1,357.31, 1,873.10 and 736.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,357.31 : 1,873.10 = 736.31 : x
2. Step 2: Convert to fraction form
   1,357.31/1,873.10 = 736.31/x
3. Step 3: Cross multiply
   1,357.31x = 1,873.10 × 736.31
4. Step 4: Simplify right side
   1,357.31x = 1,379,188.78
5. Step 5: Solve for x
   x = 1,379,188.78/1,357.31
6. Step 6: Final answer
   x = 1,016.12