Finding the Fourth Proportional to 1,339.16, 1,848.15 and 749.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.16 : 1,848.15 = 749.81 : x
2. Step 2: Convert to fraction form
   1,339.16/1,848.15 = 749.81/x
3. Step 3: Cross multiply
   1,339.16x = 1,848.15 × 749.81
4. Step 4: Simplify right side
   1,339.16x = 1,385,765.97
5. Step 5: Solve for x
   x = 1,385,765.97/1,339.16
6. Step 6: Final answer
   x = 1,034.81