Finding the Fourth Proportional to 1,339.32, 1,848.24 and 749.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.32 : 1,848.24 = 749.85 : x
2. Step 2: Convert to fraction form
   1,339.32/1,848.24 = 749.85/x
3. Step 3: Cross multiply
   1,339.32x = 1,848.24 × 749.85
4. Step 4: Simplify right side
   1,339.32x = 1,385,902.76
5. Step 5: Solve for x
   x = 1,385,902.76/1,339.32
6. Step 6: Final answer
   x = 1,034.78