Finding the Fourth Proportional to 1,081.49, 1,621.76 and 464.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.49 : 1,621.76 = 464.81 : x
2. Step 2: Convert to fraction form
   1,081.49/1,621.76 = 464.81/x
3. Step 3: Cross multiply
   1,081.49x = 1,621.76 × 464.81
4. Step 4: Simplify right side
   1,081.49x = 753,799.83
5. Step 5: Solve for x
   x = 753,799.83/1,081.49
6. Step 6: Final answer
   x = 697.00