Finding the Fourth Proportional to 1,740.39, 2,401.70 and 994.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,740.39 : 2,401.70 = 994.31 : x
2. Step 2: Convert to fraction form
   1,740.39/2,401.70 = 994.31/x
3. Step 3: Cross multiply
   1,740.39x = 2,401.70 × 994.31
4. Step 4: Simplify right side
   1,740.39x = 2,388,034.33
5. Step 5: Solve for x
   x = 2,388,034.33/1,740.39
6. Step 6: Final answer
   x = 1,372.13