Finding the Fourth Proportional to 1,114.27, 1,538.42 and 716.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114.27 : 1,538.42 = 716.11 : x
2. Step 2: Convert to fraction form
   1,114.27/1,538.42 = 716.11/x
3. Step 3: Cross multiply
   1,114.27x = 1,538.42 × 716.11
4. Step 4: Simplify right side
   1,114.27x = 1,101,670.52
5. Step 5: Solve for x
   x = 1,101,670.52/1,114.27
6. Step 6: Final answer
   x = 988.69