Finding the Fourth Proportional to 3,643.17, 5,463.94 and 1,451.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,643.17 : 5,463.94 = 1,451.31 : x
2. Step 2: Convert to fraction form
   3,643.17/5,463.94 = 1,451.31/x
3. Step 3: Cross multiply
   3,643.17x = 5,463.94 × 1,451.31
4. Step 4: Simplify right side
   3,643.17x = 7,929,870.76
5. Step 5: Solve for x
   x = 7,929,870.76/3,643.17
6. Step 6: Final answer
   x = 2,176.64