Finding the Fourth Proportional to 1,453.75, 2,003.37 and 928.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,453.75 : 2,003.37 = 928.87 : x
2. Step 2: Convert to fraction form
   1,453.75/2,003.37 = 928.87/x
3. Step 3: Cross multiply
   1,453.75x = 2,003.37 × 928.87
4. Step 4: Simplify right side
   1,453.75x = 1,860,870.29
5. Step 5: Solve for x
   x = 1,860,870.29/1,453.75
6. Step 6: Final answer
   x = 1,280.05