Finding the Fourth Proportional to 2,443.18, 3,663.96 and 981.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.18 : 3,663.96 = 981.94 : x
2. Step 2: Convert to fraction form
   2,443.18/3,663.96 = 981.94/x
3. Step 3: Cross multiply
   2,443.18x = 3,663.96 × 981.94
4. Step 4: Simplify right side
   2,443.18x = 3,597,788.88
5. Step 5: Solve for x
   x = 3,597,788.88/2,443.18
6. Step 6: Final answer
   x = 1,472.58