Finding the Fourth Proportional to 1,343.34, 1,851.39 and 993.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.34 : 1,851.39 = 993.42 : x
2. Step 2: Convert to fraction form
   1,343.34/1,851.39 = 993.42/x
3. Step 3: Cross multiply
   1,343.34x = 1,851.39 × 993.42
4. Step 4: Simplify right side
   1,343.34x = 1,839,207.85
5. Step 5: Solve for x
   x = 1,839,207.85/1,343.34
6. Step 6: Final answer
   x = 1,369.13