Finding the Fourth Proportional to 2,624.62, 3,937.34 and 981.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,624.62 : 3,937.34 = 981.40 : x
2. Step 2: Convert to fraction form
   2,624.62/3,937.34 = 981.40/x
3. Step 3: Cross multiply
   2,624.62x = 3,937.34 × 981.40
4. Step 4: Simplify right side
   2,624.62x = 3,864,105.48
5. Step 5: Solve for x
   x = 3,864,105.48/2,624.62
6. Step 6: Final answer
   x = 1,472.25