Finding the Fourth Proportional to 1,339.15, 1,848.04 and 749.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.15 : 1,848.04 = 749.72 : x
2. Step 2: Convert to fraction form
   1,339.15/1,848.04 = 749.72/x
3. Step 3: Cross multiply
   1,339.15x = 1,848.04 × 749.72
4. Step 4: Simplify right side
   1,339.15x = 1,385,503.31
5. Step 5: Solve for x
   x = 1,385,503.31/1,339.15
6. Step 6: Final answer
   x = 1,034.61