Finding the Fourth Proportional to 1,146.81, 1,583.91 and 755.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146.81 : 1,583.91 = 755.58 : x
2. Step 2: Convert to fraction form
   1,146.81/1,583.91 = 755.58/x
3. Step 3: Cross multiply
   1,146.81x = 1,583.91 × 755.58
4. Step 4: Simplify right side
   1,146.81x = 1,196,770.72
5. Step 5: Solve for x
   x = 1,196,770.72/1,146.81
6. Step 6: Final answer
   x = 1,043.56