Finding the Fourth Proportional to 2,493.18, 3,732.78 and 1,320.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,493.18 : 3,732.78 = 1,320.53 : x
2. Step 2: Convert to fraction form
   2,493.18/3,732.78 = 1,320.53/x
3. Step 3: Cross multiply
   2,493.18x = 3,732.78 × 1,320.53
4. Step 4: Simplify right side
   2,493.18x = 4,929,257.31
5. Step 5: Solve for x
   x = 4,929,257.31/2,493.18
6. Step 6: Final answer
   x = 1,977.10