Finding the Fourth Proportional to 3,905.50, 5,857.34 and 1,131.54

Step by Step Solution

1. Step 1: Write the proportion equation
   3,905.50 : 5,857.34 = 1,131.54 : x
2. Step 2: Convert to fraction form
   3,905.50/5,857.34 = 1,131.54/x
3. Step 3: Cross multiply
   3,905.50x = 5,857.34 × 1,131.54
4. Step 4: Simplify right side
   3,905.50x = 6,627,814.50
5. Step 5: Solve for x
   x = 6,627,814.50/3,905.50
6. Step 6: Final answer
   x = 1,697.05