Finding the Fourth Proportional to 1,401.42, 2,098.46 and 988.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.42 : 2,098.46 = 988.32 : x
2. Step 2: Convert to fraction form
   1,401.42/2,098.46 = 988.32/x
3. Step 3: Cross multiply
   1,401.42x = 2,098.46 × 988.32
4. Step 4: Simplify right side
   1,401.42x = 2,073,949.99
5. Step 5: Solve for x
   x = 2,073,949.99/1,401.42
6. Step 6: Final answer
   x = 1,479.89