Finding the Fourth Proportional to 2,615.88, 3,924.52 and 972.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,615.88 : 3,924.52 = 972.48 : x
2. Step 2: Convert to fraction form
   2,615.88/3,924.52 = 972.48/x
3. Step 3: Cross multiply
   2,615.88x = 3,924.52 × 972.48
4. Step 4: Simplify right side
   2,615.88x = 3,816,517.21
5. Step 5: Solve for x
   x = 3,816,517.21/2,615.88
6. Step 6: Final answer
   x = 1,458.98