Finding the Fourth Proportional to 1,047.82, 1,445.64 and 605.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.82 : 1,445.64 = 605.56 : x
2. Step 2: Convert to fraction form
   1,047.82/1,445.64 = 605.56/x
3. Step 3: Cross multiply
   1,047.82x = 1,445.64 × 605.56
4. Step 4: Simplify right side
   1,047.82x = 875,421.76
5. Step 5: Solve for x
   x = 875,421.76/1,047.82
6. Step 6: Final answer
   x = 835.47