Finding the Fourth Proportional to 3,745.89, 5,618.98 and 972.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,745.89 : 5,618.98 = 972.49 : x
2. Step 2: Convert to fraction form
   3,745.89/5,618.98 = 972.49/x
3. Step 3: Cross multiply
   3,745.89x = 5,618.98 × 972.49
4. Step 4: Simplify right side
   3,745.89x = 5,464,401.86
5. Step 5: Solve for x
   x = 5,464,401.86/3,745.89
6. Step 6: Final answer
   x = 1,458.77