Finding the Fourth Proportional to 1,127.58, 1,554.18 and 754.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,127.58 : 1,554.18 = 754.42 : x
2. Step 2: Convert to fraction form
   1,127.58/1,554.18 = 754.42/x
3. Step 3: Cross multiply
   1,127.58x = 1,554.18 × 754.42
4. Step 4: Simplify right side
   1,127.58x = 1,172,504.48
5. Step 5: Solve for x
   x = 1,172,504.48/1,127.58
6. Step 6: Final answer
   x = 1,039.84