Finding the Fourth Proportional to 1,344.21, 1,855.05 and 754.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,344.21 : 1,855.05 = 754.71 : x
2. Step 2: Convert to fraction form
   1,344.21/1,855.05 = 754.71/x
3. Step 3: Cross multiply
   1,344.21x = 1,855.05 × 754.71
4. Step 4: Simplify right side
   1,344.21x = 1,400,024.79
5. Step 5: Solve for x
   x = 1,400,024.79/1,344.21
6. Step 6: Final answer
   x = 1,041.52