Finding the Fourth Proportional to 1,271.82, 1,755.10 and 712.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,271.82 : 1,755.10 = 712.32 : x
2. Step 2: Convert to fraction form
   1,271.82/1,755.10 = 712.32/x
3. Step 3: Cross multiply
   1,271.82x = 1,755.10 × 712.32
4. Step 4: Simplify right side
   1,271.82x = 1,250,192.83
5. Step 5: Solve for x
   x = 1,250,192.83/1,271.82
6. Step 6: Final answer
   x = 983.00