Finding the Fourth Proportional to 1,072.51, 1,479.33 and 699.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,072.51 : 1,479.33 = 699.82 : x
2. Step 2: Convert to fraction form
   1,072.51/1,479.33 = 699.82/x
3. Step 3: Cross multiply
   1,072.51x = 1,479.33 × 699.82
4. Step 4: Simplify right side
   1,072.51x = 1,035,261.02
5. Step 5: Solve for x
   x = 1,035,261.02/1,072.51
6. Step 6: Final answer
   x = 965.27