Finding the Fourth Proportional to 1,047.74, 1,445.55 and 605.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.74 : 1,445.55 = 605.59 : x
2. Step 2: Convert to fraction form
   1,047.74/1,445.55 = 605.59/x
3. Step 3: Cross multiply
   1,047.74x = 1,445.55 × 605.59
4. Step 4: Simplify right side
   1,047.74x = 875,410.62
5. Step 5: Solve for x
   x = 875,410.62/1,047.74
6. Step 6: Final answer
   x = 835.52