Finding the Fourth Proportional to 2,100.60, 3,150.09 and 945.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.60 : 3,150.09 = 945.54 : x
2. Step 2: Convert to fraction form
   2,100.60/3,150.09 = 945.54/x
3. Step 3: Cross multiply
   2,100.60x = 3,150.09 × 945.54
4. Step 4: Simplify right side
   2,100.60x = 2,978,536.10
5. Step 5: Solve for x
   x = 2,978,536.10/2,100.60
6. Step 6: Final answer
   x = 1,417.95