Finding the Fourth Proportional to 3,665.96, 5,500.31 and 1,475.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.96 : 5,500.31 = 1,475.31 : x
2. Step 2: Convert to fraction form
   3,665.96/5,500.31 = 1,475.31/x
3. Step 3: Cross multiply
   3,665.96x = 5,500.31 × 1,475.31
4. Step 4: Simplify right side
   3,665.96x = 8,114,675.60
5. Step 5: Solve for x
   x = 8,114,675.60/3,665.96
6. Step 6: Final answer
   x = 2,213.52