Finding the Fourth Proportional to 1,081.96, 1,491.54 and 749.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,081.96 : 1,491.54 = 749.88 : x
2. Step 2: Convert to fraction form
   1,081.96/1,491.54 = 749.88/x
3. Step 3: Cross multiply
   1,081.96x = 1,491.54 × 749.88
4. Step 4: Simplify right side
   1,081.96x = 1,118,476.02
5. Step 5: Solve for x
   x = 1,118,476.02/1,081.96
6. Step 6: Final answer
   x = 1,033.75