Finding the Fourth Proportional to 1,343.53, 1,850.77 and 1,143.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.53 : 1,850.77 = 1,143.72 : x
2. Step 2: Convert to fraction form
   1,343.53/1,850.77 = 1,143.72/x
3. Step 3: Cross multiply
   1,343.53x = 1,850.77 × 1,143.72
4. Step 4: Simplify right side
   1,343.53x = 2,116,757.66
5. Step 5: Solve for x
   x = 2,116,757.66/1,343.53
6. Step 6: Final answer
   x = 1,575.52