Finding the Fourth Proportional to 1,635.78, 2,451.12 and 976.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,635.78 : 2,451.12 = 976.38 : x
2. Step 2: Convert to fraction form
   1,635.78/2,451.12 = 976.38/x
3. Step 3: Cross multiply
   1,635.78x = 2,451.12 × 976.38
4. Step 4: Simplify right side
   1,635.78x = 2,393,224.55
5. Step 5: Solve for x
   x = 2,393,224.55/1,635.78
6. Step 6: Final answer
   x = 1,463.05