Finding the Fourth Proportional to 1,009.60, 1,391.42 and 759.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,009.60 : 1,391.42 = 759.22 : x
2. Step 2: Convert to fraction form
   1,009.60/1,391.42 = 759.22/x
3. Step 3: Cross multiply
   1,009.60x = 1,391.42 × 759.22
4. Step 4: Simplify right side
   1,009.60x = 1,056,393.89
5. Step 5: Solve for x
   x = 1,056,393.89/1,009.60
6. Step 6: Final answer
   x = 1,046.35