Finding the Fourth Proportional to 2,978.29, 4,468.17 and 898.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978.29 : 4,468.17 = 898.25 : x
2. Step 2: Convert to fraction form
   2,978.29/4,468.17 = 898.25/x
3. Step 3: Cross multiply
   2,978.29x = 4,468.17 × 898.25
4. Step 4: Simplify right side
   2,978.29x = 4,013,533.70
5. Step 5: Solve for x
   x = 4,013,533.70/2,978.29
6. Step 6: Final answer
   x = 1,347.60