Finding the Fourth Proportional to 1,355.53, 1,870.64 and 734.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355.53 : 1,870.64 = 734.53 : x
2. Step 2: Convert to fraction form
   1,355.53/1,870.64 = 734.53/x
3. Step 3: Cross multiply
   1,355.53x = 1,870.64 × 734.53
4. Step 4: Simplify right side
   1,355.53x = 1,374,039.86
5. Step 5: Solve for x
   x = 1,374,039.86/1,355.53
6. Step 6: Final answer
   x = 1,013.65