Finding the Fourth Proportional to 2,688.40, 3,710.18 and 1,493.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,688.40 : 3,710.18 = 1,493.53 : x
2. Step 2: Convert to fraction form
   2,688.40/3,710.18 = 1,493.53/x
3. Step 3: Cross multiply
   2,688.40x = 3,710.18 × 1,493.53
4. Step 4: Simplify right side
   2,688.40x = 5,541,265.14
5. Step 5: Solve for x
   x = 5,541,265.14/2,688.40
6. Step 6: Final answer
   x = 2,061.18