Finding the Fourth Proportional to 2,747.68, 4,118.61 and 898.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,747.68 : 4,118.61 = 898.30 : x
2. Step 2: Convert to fraction form
   2,747.68/4,118.61 = 898.30/x
3. Step 3: Cross multiply
   2,747.68x = 4,118.61 × 898.30
4. Step 4: Simplify right side
   2,747.68x = 3,699,724.52
5. Step 5: Solve for x
   x = 3,699,724.52/2,747.68
6. Step 6: Final answer
   x = 1,346.49