Finding the Fourth Proportional to 2,367.57, 3,551.78 and 980.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,367.57 : 3,551.78 = 980.15 : x
2. Step 2: Convert to fraction form
   2,367.57/3,551.78 = 980.15/x
3. Step 3: Cross multiply
   2,367.57x = 3,551.78 × 980.15
4. Step 4: Simplify right side
   2,367.57x = 3,481,277.17
5. Step 5: Solve for x
   x = 3,481,277.17/2,367.57
6. Step 6: Final answer
   x = 1,470.40