Finding the Fourth Proportional to 2,179.57, 3,266.58 and 945.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.57 : 3,266.58 = 945.53 : x
2. Step 2: Convert to fraction form
   2,179.57/3,266.58 = 945.53/x
3. Step 3: Cross multiply
   2,179.57x = 3,266.58 × 945.53
4. Step 4: Simplify right side
   2,179.57x = 3,088,649.39
5. Step 5: Solve for x
   x = 3,088,649.39/2,179.57
6. Step 6: Final answer
   x = 1,417.09