Finding the Fourth Proportional to 1,632.81, 2,253.56 and 970.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,632.81 : 2,253.56 = 970.02 : x
2. Step 2: Convert to fraction form
   1,632.81/2,253.56 = 970.02/x
3. Step 3: Cross multiply
   1,632.81x = 2,253.56 × 970.02
4. Step 4: Simplify right side
   1,632.81x = 2,185,993.42
5. Step 5: Solve for x
   x = 2,185,993.42/1,632.81
6. Step 6: Final answer
   x = 1,338.79