Finding the Fourth Proportional to 3,755.72, 5,627.37 and 1,289.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,755.72 : 5,627.37 = 1,289.18 : x
2. Step 2: Convert to fraction form
   3,755.72/5,627.37 = 1,289.18/x
3. Step 3: Cross multiply
   3,755.72x = 5,627.37 × 1,289.18
4. Step 4: Simplify right side
   3,755.72x = 7,254,692.86
5. Step 5: Solve for x
   x = 7,254,692.86/3,755.72
6. Step 6: Final answer
   x = 1,931.64