Finding the Fourth Proportional to 1,636.56, 2,448.72 and 976.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,636.56 : 2,448.72 = 976.02 : x
2. Step 2: Convert to fraction form
   1,636.56/2,448.72 = 976.02/x
3. Step 3: Cross multiply
   1,636.56x = 2,448.72 × 976.02
4. Step 4: Simplify right side
   1,636.56x = 2,389,999.69
5. Step 5: Solve for x
   x = 2,389,999.69/1,636.56
6. Step 6: Final answer
   x = 1,460.38