Finding the Fourth Proportional to 1,086.49, 1,629.18 and 469.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.49 : 1,629.18 = 469.37 : x
2. Step 2: Convert to fraction form
   1,086.49/1,629.18 = 469.37/x
3. Step 3: Cross multiply
   1,086.49x = 1,629.18 × 469.37
4. Step 4: Simplify right side
   1,086.49x = 764,688.22
5. Step 5: Solve for x
   x = 764,688.22/1,086.49
6. Step 6: Final answer
   x = 703.82