Finding the Fourth Proportional to 1,575.05, 2,173.61 and 945.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,575.05 : 2,173.61 = 945.36 : x
2. Step 2: Convert to fraction form
   1,575.05/2,173.61 = 945.36/x
3. Step 3: Cross multiply
   1,575.05x = 2,173.61 × 945.36
4. Step 4: Simplify right side
   1,575.05x = 2,054,846.31
5. Step 5: Solve for x
   x = 2,054,846.31/1,575.05
6. Step 6: Final answer
   x = 1,304.63