Finding the Fourth Proportional to 1,339.80, 1,848.72 and 750.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.80 : 1,848.72 = 750.28 : x
2. Step 2: Convert to fraction form
   1,339.80/1,848.72 = 750.28/x
3. Step 3: Cross multiply
   1,339.80x = 1,848.72 × 750.28
4. Step 4: Simplify right side
   1,339.80x = 1,387,057.64
5. Step 5: Solve for x
   x = 1,387,057.64/1,339.80
6. Step 6: Final answer
   x = 1,035.27