Finding the Fourth Proportional to 1,839.42, 2,760.54 and 744.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,839.42 : 2,760.54 = 744.57 : x
2. Step 2: Convert to fraction form
   1,839.42/2,760.54 = 744.57/x
3. Step 3: Cross multiply
   1,839.42x = 2,760.54 × 744.57
4. Step 4: Simplify right side
   1,839.42x = 2,055,415.27
5. Step 5: Solve for x
   x = 2,055,415.27/1,839.42
6. Step 6: Final answer
   x = 1,117.43