Finding the Fourth Proportional to 2,980.82, 4,471.34 and 2,545.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,980.82 : 4,471.34 = 2,545.25 : x
2. Step 2: Convert to fraction form
   2,980.82/4,471.34 = 2,545.25/x
3. Step 3: Cross multiply
   2,980.82x = 4,471.34 × 2,545.25
4. Step 4: Simplify right side
   2,980.82x = 11,380,643.05
5. Step 5: Solve for x
   x = 11,380,643.05/2,980.82
6. Step 6: Final answer
   x = 3,817.95