Finding the Fourth Proportional to 1,062.05, 1,463.31 and 712.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,062.05 : 1,463.31 = 712.13 : x
2. Step 2: Convert to fraction form
   1,062.05/1,463.31 = 712.13/x
3. Step 3: Cross multiply
   1,062.05x = 1,463.31 × 712.13
4. Step 4: Simplify right side
   1,062.05x = 1,042,066.95
5. Step 5: Solve for x
   x = 1,042,066.95/1,062.05
6. Step 6: Final answer
   x = 981.18