Finding the Fourth Proportional to 2,602.45, 3,900.21 and 957.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,602.45 : 3,900.21 = 957.48 : x
2. Step 2: Convert to fraction form
   2,602.45/3,900.21 = 957.48/x
3. Step 3: Cross multiply
   2,602.45x = 3,900.21 × 957.48
4. Step 4: Simplify right side
   2,602.45x = 3,734,373.07
5. Step 5: Solve for x
   x = 3,734,373.07/2,602.45
6. Step 6: Final answer
   x = 1,434.95