Finding the Fourth Proportional to 1,339.33, 1,848.30 and 749.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.33 : 1,848.30 = 749.86 : x
2. Step 2: Convert to fraction form
   1,339.33/1,848.30 = 749.86/x
3. Step 3: Cross multiply
   1,339.33x = 1,848.30 × 749.86
4. Step 4: Simplify right side
   1,339.33x = 1,385,971.31
5. Step 5: Solve for x
   x = 1,385,971.31/1,339.33
6. Step 6: Final answer
   x = 1,034.82