Finding the Fourth Proportional to 1,339.12, 1,848.18 and 749.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.12 : 1,848.18 = 749.71 : x
2. Step 2: Convert to fraction form
   1,339.12/1,848.18 = 749.71/x
3. Step 3: Cross multiply
   1,339.12x = 1,848.18 × 749.71
4. Step 4: Simplify right side
   1,339.12x = 1,385,599.03
5. Step 5: Solve for x
   x = 1,385,599.03/1,339.12
6. Step 6: Final answer
   x = 1,034.71