Finding the Fourth Proportional to 2,980.24, 4,472.14 and 1,131.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,980.24 : 4,472.14 = 1,131.60 : x
2. Step 2: Convert to fraction form
   2,980.24/4,472.14 = 1,131.60/x
3. Step 3: Cross multiply
   2,980.24x = 4,472.14 × 1,131.60
4. Step 4: Simplify right side
   2,980.24x = 5,060,673.62
5. Step 5: Solve for x
   x = 5,060,673.62/2,980.24
6. Step 6: Final answer
   x = 1,698.08