Finding the Fourth Proportional to 1,039.34, 1,434.25 and 567.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039.34 : 1,434.25 = 567.23 : x
2. Step 2: Convert to fraction form
   1,039.34/1,434.25 = 567.23/x
3. Step 3: Cross multiply
   1,039.34x = 1,434.25 × 567.23
4. Step 4: Simplify right side
   1,039.34x = 813,543.17
5. Step 5: Solve for x
   x = 813,543.17/1,039.34
6. Step 6: Final answer
   x = 782.75