Finding the Fourth Proportional to 2,149.59, 3,225.96 and 980.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,149.59 : 3,225.96 = 980.91 : x
2. Step 2: Convert to fraction form
   2,149.59/3,225.96 = 980.91/x
3. Step 3: Cross multiply
   2,149.59x = 3,225.96 × 980.91
4. Step 4: Simplify right side
   2,149.59x = 3,164,376.42
5. Step 5: Solve for x
   x = 3,164,376.42/2,149.59
6. Step 6: Final answer
   x = 1,472.08