Finding the Fourth Proportional to 2,624.06, 3,936.50 and 980.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,624.06 : 3,936.50 = 980.84 : x
2. Step 2: Convert to fraction form
   2,624.06/3,936.50 = 980.84/x
3. Step 3: Cross multiply
   2,624.06x = 3,936.50 × 980.84
4. Step 4: Simplify right side
   2,624.06x = 3,861,085.28
5. Step 5: Solve for x
   x = 3,861,085.28/2,624.06
6. Step 6: Final answer
   x = 1,471.42