Finding the Fourth Proportional to 1,339.22, 1,848.22 and 749.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.22 : 1,848.22 = 749.80 : x
2. Step 2: Convert to fraction form
   1,339.22/1,848.22 = 749.80/x
3. Step 3: Cross multiply
   1,339.22x = 1,848.22 × 749.80
4. Step 4: Simplify right side
   1,339.22x = 1,385,788.86
5. Step 5: Solve for x
   x = 1,385,788.86/1,339.22
6. Step 6: Final answer
   x = 1,034.77