Finding the Fourth Proportional to 1,114.34, 1,536.77 and 715.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114.34 : 1,536.77 = 715.54 : x
2. Step 2: Convert to fraction form
   1,114.34/1,536.77 = 715.54/x
3. Step 3: Cross multiply
   1,114.34x = 1,536.77 × 715.54
4. Step 4: Simplify right side
   1,114.34x = 1,099,618.35
5. Step 5: Solve for x
   x = 1,099,618.35/1,114.34
6. Step 6: Final answer
   x = 986.79