Finding the Fourth Proportional to 1,335.29, 1,842.72 and 745.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,335.29 : 1,842.72 = 745.87 : x
2. Step 2: Convert to fraction form
   1,335.29/1,842.72 = 745.87/x
3. Step 3: Cross multiply
   1,335.29x = 1,842.72 × 745.87
4. Step 4: Simplify right side
   1,335.29x = 1,374,429.57
5. Step 5: Solve for x
   x = 1,374,429.57/1,335.29
6. Step 6: Final answer
   x = 1,029.31