Finding the Fourth Proportional to 1,032.86, 1,425.40 and 613.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,032.86 : 1,425.40 = 613.46 : x
2. Step 2: Convert to fraction form
   1,032.86/1,425.40 = 613.46/x
3. Step 3: Cross multiply
   1,032.86x = 1,425.40 × 613.46
4. Step 4: Simplify right side
   1,032.86x = 874,427.91
5. Step 5: Solve for x
   x = 874,427.91/1,032.86
6. Step 6: Final answer
   x = 846.61