Finding the Fourth Proportional to 1,333.80, 1,840.69 and 744.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.80 : 1,840.69 = 744.45 : x
2. Step 2: Convert to fraction form
   1,333.80/1,840.69 = 744.45/x
3. Step 3: Cross multiply
   1,333.80x = 1,840.69 × 744.45
4. Step 4: Simplify right side
   1,333.80x = 1,370,292.47
5. Step 5: Solve for x
   x = 1,370,292.47/1,333.80
6. Step 6: Final answer
   x = 1,027.36