Finding the Fourth Proportional to 1,131.50, 1,560.77 and 683.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.50 : 1,560.77 = 683.17 : x
2. Step 2: Convert to fraction form
   1,131.50/1,560.77 = 683.17/x
3. Step 3: Cross multiply
   1,131.50x = 1,560.77 × 683.17
4. Step 4: Simplify right side
   1,131.50x = 1,066,266.49
5. Step 5: Solve for x
   x = 1,066,266.49/1,131.50
6. Step 6: Final answer
   x = 942.35