Finding the Fourth Proportional to 1,009.55, 1,393.27 and 567.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009.55 : 1,393.27 = 567.50 : x
2. Step 2: Convert to fraction form
   1,009.55/1,393.27 = 567.50/x
3. Step 3: Cross multiply
   1,009.55x = 1,393.27 × 567.50
4. Step 4: Simplify right side
   1,009.55x = 790,672.34
5. Step 5: Solve for x
   x = 790,672.34/1,009.55
6. Step 6: Final answer
   x = 783.19