Finding the Fourth Proportional to 1,401.62, 2,103.23 and 1,398.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.62 : 2,103.23 = 1,398.34 : x
2. Step 2: Convert to fraction form
   1,401.62/2,103.23 = 1,398.34/x
3. Step 3: Cross multiply
   1,401.62x = 2,103.23 × 1,398.34
4. Step 4: Simplify right side
   1,401.62x = 2,941,030.64
5. Step 5: Solve for x
   x = 2,941,030.64/1,401.62
6. Step 6: Final answer
   x = 2,098.31