Finding the Fourth Proportional to 2,442.16, 3,663.86 and 981.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,442.16 : 3,663.86 = 981.43 : x
2. Step 2: Convert to fraction form
   2,442.16/3,663.86 = 981.43/x
3. Step 3: Cross multiply
   2,442.16x = 3,663.86 × 981.43
4. Step 4: Simplify right side
   2,442.16x = 3,595,808.05
5. Step 5: Solve for x
   x = 3,595,808.05/2,442.16
6. Step 6: Final answer
   x = 1,472.39