Finding the Fourth Proportional to 1,632.74, 2,443.01 and 972.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,632.74 : 2,443.01 = 972.18 : x
2. Step 2: Convert to fraction form
   1,632.74/2,443.01 = 972.18/x
3. Step 3: Cross multiply
   1,632.74x = 2,443.01 × 972.18
4. Step 4: Simplify right side
   1,632.74x = 2,375,040.60
5. Step 5: Solve for x
   x = 2,375,040.60/1,632.74
6. Step 6: Final answer
   x = 1,454.64