Finding the Fourth Proportional to 1,333.78, 1,840.72 and 744.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.78 : 1,840.72 = 744.50 : x
2. Step 2: Convert to fraction form
   1,333.78/1,840.72 = 744.50/x
3. Step 3: Cross multiply
   1,333.78x = 1,840.72 × 744.50
4. Step 4: Simplify right side
   1,333.78x = 1,370,416.04
5. Step 5: Solve for x
   x = 1,370,416.04/1,333.78
6. Step 6: Final answer
   x = 1,027.47