Finding the Fourth Proportional to 2,978.62, 4,466.49 and 898.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.62 : 4,466.49 = 898.23 : x
2. Step 2: Convert to fraction form
   2,978.62/4,466.49 = 898.23/x
3. Step 3: Cross multiply
   2,978.62x = 4,466.49 × 898.23
4. Step 4: Simplify right side
   2,978.62x = 4,011,948.69
5. Step 5: Solve for x
   x = 4,011,948.69/2,978.62
6. Step 6: Final answer
   x = 1,346.92