Finding the Fourth Proportional to 1,401.54, 1,934.72 and 998.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.54 : 1,934.72 = 998.03 : x
2. Step 2: Convert to fraction form
   1,401.54/1,934.72 = 998.03/x
3. Step 3: Cross multiply
   1,401.54x = 1,934.72 × 998.03
4. Step 4: Simplify right side
   1,401.54x = 1,930,908.60
5. Step 5: Solve for x
   x = 1,930,908.60/1,401.54
6. Step 6: Final answer
   x = 1,377.70