Finding the Fourth Proportional to 2,624.69, 3,937.50 and 981.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,624.69 : 3,937.50 = 981.20 : x
2. Step 2: Convert to fraction form
   2,624.69/3,937.50 = 981.20/x
3. Step 3: Cross multiply
   2,624.69x = 3,937.50 × 981.20
4. Step 4: Simplify right side
   2,624.69x = 3,863,475
5. Step 5: Solve for x
   x = 3,863,475/2,624.69
6. Step 6: Final answer
   x = 1,471.97