Finding the Fourth Proportional to 1,339.38, 1,848.06 and 749.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.38 : 1,848.06 = 749.79 : x
2. Step 2: Convert to fraction form
   1,339.38/1,848.06 = 749.79/x
3. Step 3: Cross multiply
   1,339.38x = 1,848.06 × 749.79
4. Step 4: Simplify right side
   1,339.38x = 1,385,656.91
5. Step 5: Solve for x
   x = 1,385,656.91/1,339.38
6. Step 6: Final answer
   x = 1,034.55