Finding the Fourth Proportional to 3,897.45, 5,845.29 and 1,123.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,897.45 : 5,845.29 = 1,123.50 : x
2. Step 2: Convert to fraction form
   3,897.45/5,845.29 = 1,123.50/x
3. Step 3: Cross multiply
   3,897.45x = 5,845.29 × 1,123.50
4. Step 4: Simplify right side
   3,897.45x = 6,567,183.32
5. Step 5: Solve for x
   x = 6,567,183.32/3,897.45
6. Step 6: Final answer
   x = 1,684.99