Finding the Fourth Proportional to 2,624.78, 3,928.98 and 1,962.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,624.78 : 3,928.98 = 1,962.74 : x
2. Step 2: Convert to fraction form
   2,624.78/3,928.98 = 1,962.74/x
3. Step 3: Cross multiply
   2,624.78x = 3,928.98 × 1,962.74
4. Step 4: Simplify right side
   2,624.78x = 7,711,576.03
5. Step 5: Solve for x
   x = 7,711,576.03/2,624.78
6. Step 6: Final answer
   x = 2,937.99