Finding the Fourth Proportional to 1,351.61, 1,865.39 and 762.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,351.61 : 1,865.39 = 762.33 : x
2. Step 2: Convert to fraction form
   1,351.61/1,865.39 = 762.33/x
3. Step 3: Cross multiply
   1,351.61x = 1,865.39 × 762.33
4. Step 4: Simplify right side
   1,351.61x = 1,422,042.76
5. Step 5: Solve for x
   x = 1,422,042.76/1,351.61
6. Step 6: Final answer
   x = 1,052.11