Finding the Fourth Proportional to 1,041.53, 1,561.41 and 493.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,041.53 : 1,561.41 = 493.56 : x
2. Step 2: Convert to fraction form
   1,041.53/1,561.41 = 493.56/x
3. Step 3: Cross multiply
   1,041.53x = 1,561.41 × 493.56
4. Step 4: Simplify right side
   1,041.53x = 770,649.52
5. Step 5: Solve for x
   x = 770,649.52/1,041.53
6. Step 6: Final answer
   x = 739.92