Finding the Fourth Proportional to 3,449.31, 5,175.49 and 1,140.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,449.31 : 5,175.49 = 1,140.81 : x
2. Step 2: Convert to fraction form
   3,449.31/5,175.49 = 1,140.81/x
3. Step 3: Cross multiply
   3,449.31x = 5,175.49 × 1,140.81
4. Step 4: Simplify right side
   3,449.31x = 5,904,250.75
5. Step 5: Solve for x
   x = 5,904,250.75/3,449.31
6. Step 6: Final answer
   x = 1,711.72