Finding the Fourth Proportional to 1,770.30, 2,442.78 and 984.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,770.30 : 2,442.78 = 984.24 : x
2. Step 2: Convert to fraction form
   1,770.30/2,442.78 = 984.24/x
3. Step 3: Cross multiply
   1,770.30x = 2,442.78 × 984.24
4. Step 4: Simplify right side
   1,770.30x = 2,404,281.79
5. Step 5: Solve for x
   x = 2,404,281.79/1,770.30
6. Step 6: Final answer
   x = 1,358.12