Finding the Fourth Proportional to 1,039.56, 1,434.59 and 567.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039.56 : 1,434.59 = 567.46 : x
2. Step 2: Convert to fraction form
   1,039.56/1,434.59 = 567.46/x
3. Step 3: Cross multiply
   1,039.56x = 1,434.59 × 567.46
4. Step 4: Simplify right side
   1,039.56x = 814,070.27
5. Step 5: Solve for x
   x = 814,070.27/1,039.56
6. Step 6: Final answer
   x = 783.09