Finding the Fourth Proportional to 1,131.98, 1,561.41 and 739.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.98 : 1,561.41 = 739.53 : x
2. Step 2: Convert to fraction form
   1,131.98/1,561.41 = 739.53/x
3. Step 3: Cross multiply
   1,131.98x = 1,561.41 × 739.53
4. Step 4: Simplify right side
   1,131.98x = 1,154,709.54
5. Step 5: Solve for x
   x = 1,154,709.54/1,131.98
6. Step 6: Final answer
   x = 1,020.08