Finding the Fourth Proportional to 1,334.72, 1,842 and 745.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,334.72 : 1,842 = 745.31 : x
2. Step 2: Convert to fraction form
   1,334.72/1,842 = 745.31/x
3. Step 3: Cross multiply
   1,334.72x = 1,842 × 745.31
4. Step 4: Simplify right side
   1,334.72x = 1,372,861.02
5. Step 5: Solve for x
   x = 1,372,861.02/1,334.72
6. Step 6: Final answer
   x = 1,028.58