Finding the Fourth Proportional to 2,539.27, 3,808.86 and 980.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,539.27 : 3,808.86 = 980.02 : x
2. Step 2: Convert to fraction form
   2,539.27/3,808.86 = 980.02/x
3. Step 3: Cross multiply
   2,539.27x = 3,808.86 × 980.02
4. Step 4: Simplify right side
   2,539.27x = 3,732,758.98
5. Step 5: Solve for x
   x = 3,732,758.98/2,539.27
6. Step 6: Final answer
   x = 1,470.01