Finding the Fourth Proportional to 1,053.48, 1,453.89 and 605.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053.48 : 1,453.89 = 605.41 : x
2. Step 2: Convert to fraction form
   1,053.48/1,453.89 = 605.41/x
3. Step 3: Cross multiply
   1,053.48x = 1,453.89 × 605.41
4. Step 4: Simplify right side
   1,053.48x = 880,199.54
5. Step 5: Solve for x
   x = 880,199.54/1,053.48
6. Step 6: Final answer
   x = 835.52