Finding the Fourth Proportional to 1,333.90, 1,840.80 and 744.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.90 : 1,840.80 = 744.42 : x
2. Step 2: Convert to fraction form
   1,333.90/1,840.80 = 744.42/x
3. Step 3: Cross multiply
   1,333.90x = 1,840.80 × 744.42
4. Step 4: Simplify right side
   1,333.90x = 1,370,328.34
5. Step 5: Solve for x
   x = 1,370,328.34/1,333.90
6. Step 6: Final answer
   x = 1,027.31