Finding the Fourth Proportional to 1,070.37, 1,476.56 and 716.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,070.37 : 1,476.56 = 716.38 : x
2. Step 2: Convert to fraction form
   1,070.37/1,476.56 = 716.38/x
3. Step 3: Cross multiply
   1,070.37x = 1,476.56 × 716.38
4. Step 4: Simplify right side
   1,070.37x = 1,057,776.15
5. Step 5: Solve for x
   x = 1,057,776.15/1,070.37
6. Step 6: Final answer
   x = 988.23