Finding the Fourth Proportional to 1,493.83, 2,240.50 and 453.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,493.83 : 2,240.50 = 453.59 : x
2. Step 2: Convert to fraction form
   1,493.83/2,240.50 = 453.59/x
3. Step 3: Cross multiply
   1,493.83x = 2,240.50 × 453.59
4. Step 4: Simplify right side
   1,493.83x = 1,016,254.92
5. Step 5: Solve for x
   x = 1,016,254.92/1,493.83
6. Step 6: Final answer
   x = 680.30