Finding the Fourth Proportional to 1,009.57, 1,393.32 and 567.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009.57 : 1,393.32 = 567.47 : x
2. Step 2: Convert to fraction form
   1,009.57/1,393.32 = 567.47/x
3. Step 3: Cross multiply
   1,009.57x = 1,393.32 × 567.47
4. Step 4: Simplify right side
   1,009.57x = 790,667.30
5. Step 5: Solve for x
   x = 790,667.30/1,009.57
6. Step 6: Final answer
   x = 783.17