Finding the Fourth Proportional to 1,011.97, 1,396.52 and 569.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,011.97 : 1,396.52 = 569.98 : x
2. Step 2: Convert to fraction form
   1,011.97/1,396.52 = 569.98/x
3. Step 3: Cross multiply
   1,011.97x = 1,396.52 × 569.98
4. Step 4: Simplify right side
   1,011.97x = 795,978.64
5. Step 5: Solve for x
   x = 795,978.64/1,011.97
6. Step 6: Final answer
   x = 786.56