Finding the Fourth Proportional to 1,032.86, 1,425.30 and 613.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,032.86 : 1,425.30 = 613.22 : x
2. Step 2: Convert to fraction form
   1,032.86/1,425.30 = 613.22/x
3. Step 3: Cross multiply
   1,032.86x = 1,425.30 × 613.22
4. Step 4: Simplify right side
   1,032.86x = 874,022.47
5. Step 5: Solve for x
   x = 874,022.47/1,032.86
6. Step 6: Final answer
   x = 846.22