Finding the Fourth Proportional to 1,355.35, 1,870.38 and 734.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355.35 : 1,870.38 = 734.35 : x
2. Step 2: Convert to fraction form
   1,355.35/1,870.38 = 734.35/x
3. Step 3: Cross multiply
   1,355.35x = 1,870.38 × 734.35
4. Step 4: Simplify right side
   1,355.35x = 1,373,508.88
5. Step 5: Solve for x
   x = 1,373,508.88/1,355.35
6. Step 6: Final answer
   x = 1,013.40