Finding the Fourth Proportional to 1,335.18, 1,842.50 and 745.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,335.18 : 1,842.50 = 745.72 : x
2. Step 2: Convert to fraction form
   1,335.18/1,842.50 = 745.72/x
3. Step 3: Cross multiply
   1,335.18x = 1,842.50 × 745.72
4. Step 4: Simplify right side
   1,335.18x = 1,373,989.10
5. Step 5: Solve for x
   x = 1,373,989.10/1,335.18
6. Step 6: Final answer
   x = 1,029.07