Finding the Fourth Proportional to 947.82, 1,307.82 and 554.82

Step by Step Solution

1. Step 1: Write the proportion equation
   947.82 : 1,307.82 = 554.82 : x
2. Step 2: Convert to fraction form
   947.82/1,307.82 = 554.82/x
3. Step 3: Cross multiply
   947.82x = 1,307.82 × 554.82
4. Step 4: Simplify right side
   947.82x = 725,604.69
5. Step 5: Solve for x
   x = 725,604.69/947.82
6. Step 6: Final answer
   x = 765.55