Finding the Fourth Proportional to 1,010.61, 1,394.72 and 568.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010.61 : 1,394.72 = 568.53 : x
2. Step 2: Convert to fraction form
   1,010.61/1,394.72 = 568.53/x
3. Step 3: Cross multiply
   1,010.61x = 1,394.72 × 568.53
4. Step 4: Simplify right side
   1,010.61x = 792,937.32
5. Step 5: Solve for x
   x = 792,937.32/1,010.61
6. Step 6: Final answer
   x = 784.61