Finding the Fourth Proportional to 1,333.42, 1,839.90 and 743.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.42 : 1,839.90 = 743.86 : x
2. Step 2: Convert to fraction form
   1,333.42/1,839.90 = 743.86/x
3. Step 3: Cross multiply
   1,333.42x = 1,839.90 × 743.86
4. Step 4: Simplify right side
   1,333.42x = 1,368,628.01
5. Step 5: Solve for x
   x = 1,368,628.01/1,333.42
6. Step 6: Final answer
   x = 1,026.40