Finding the Fourth Proportional to 1,339.34, 1,848.37 and 749.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.34 : 1,848.37 = 749.91 : x
2. Step 2: Convert to fraction form
   1,339.34/1,848.37 = 749.91/x
3. Step 3: Cross multiply
   1,339.34x = 1,848.37 × 749.91
4. Step 4: Simplify right side
   1,339.34x = 1,386,111.15
5. Step 5: Solve for x
   x = 1,386,111.15/1,339.34
6. Step 6: Final answer
   x = 1,034.92