Finding the Fourth Proportional to 2,619.88, 3,930.52 and 976.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,619.88 : 3,930.52 = 976.48 : x
2. Step 2: Convert to fraction form
   2,619.88/3,930.52 = 976.48/x
3. Step 3: Cross multiply
   2,619.88x = 3,930.52 × 976.48
4. Step 4: Simplify right side
   2,619.88x = 3,838,074.17
5. Step 5: Solve for x
   x = 3,838,074.17/2,619.88
6. Step 6: Final answer
   x = 1,464.98