Finding the Fourth Proportional to 4,123.47, 5,688.73 and 2,865.54

Step by Step Solution

1. Step 1: Write the proportion equation
   4,123.47 : 5,688.73 = 2,865.54 : x
2. Step 2: Convert to fraction form
   4,123.47/5,688.73 = 2,865.54/x
3. Step 3: Cross multiply
   4,123.47x = 5,688.73 × 2,865.54
4. Step 4: Simplify right side
   4,123.47x = 16,301,308.28
5. Step 5: Solve for x
   x = 16,301,308.28/4,123.47
6. Step 6: Final answer
   x = 3,953.30